5.7x28 Random Reloading Discussions

Reloading info for the 5.7x28mm

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VeTTeMaNC486
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Re: 5.7x28 Random Reloading Discussions

Post by VeTTeMaNC486 » 07 Aug 2011, 21:20

f3rr37 wrote:
MikeSantor wrote:Thanks man. I shell start cleaning my brass!
Welcome. :) I'm cleaning some .308WIN brass right now in my ultrasonic cleaner. :)
What are you using in it? I am using 1:1 ratio water/vinegar and I am not entirely pleased with the results. (they are clean but are not very shiny after a day or two.) They stay decently shiny if I let the dry on their own, but usually i toss them in the even for a bit because I want to load them not wait on them to dry.

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Re: 5.7x28 Random Reloading Discussions

Post by MikeSantor » 09 Aug 2011, 19:03

Dumb Question #2 (you guys will get sick of me soon enough)

I can not seem to find the answer too this either. Do you ALWAYS have to trim, chamfer, and deburr brass? Im assuming the answer is yes. If the case stretches during ejection im assuming they all do this. So basically you would not sit and check the length of each brass before you load it. You just run all of them through the trimmer?

So if im right thus fur, is there any real scientific way of trimming this in regards to how much you are taking off? What I mean by this is I have seen a bunch of videos of people trimming with the TrimPro and drill and they are not measuring anything. They hit it with the drill for a second and go on to the next one. Again, is this just going under the assumption that they all need just a hair taken off so you zip it with the trimmer for a second and its good to go?

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Re: 5.7x28 Random Reloading Discussions

Post by Rapier1772 » 09 Aug 2011, 19:48

For consistency's sake you should always trim however, if you're just loading plinkers where you are not worried about the data and not really worried about accuracy (it will still be close) then there is a little leeway as long as it fully chambers the round. Anytime you trim, you need to chamfer & deburr.

Case trimmers have stop rings on them. On your first shell, measure it & run the trimmer up to the shell & set the ring (this is all in the trimmer's owner's manual), back off the ring a tad, lock it again & trim a bit. Repeat until you reach the correct length. Once there, the stop ring will make it so you trim to the same length on subsequent shells. It shouldn't move but you might wanna still check them occasionally :?:

Its not that they are just hitting it for a second & that is "magically" the right length. They are trimming down to the length set on the stop ring.
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Re: 5.7x28 Random Reloading Discussions

Post by MikeSantor » 10 Aug 2011, 02:22

Anyhow a stop ring. I should have thought about that... thanks for the info!

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Re: 5.7x28 Random Reloading Discussions

Post by f3rr37 » 10 Aug 2011, 08:53

VeTTeMaNC486 wrote:
f3rr37 wrote:
MikeSantor wrote:Thanks man. I shell start cleaning my brass!
Welcome. :) I'm cleaning some .308WIN brass right now in my ultrasonic cleaner. :)
What are you using in it? I am using 1:1 ratio water/vinegar and I am not entirely pleased with the results. (they are clean but are not very shiny after a day or two.) They stay decently shiny if I let the dry on their own, but usually i toss them in the even for a bit because I want to load them not wait on them to dry.
For non-5.7x28 brass, I also use a 1:1 water/vinegar cleaning solution, I do this just to clean out all of the crap from the brass. I usually run it through a total of 5 cycles (8min each):
3 w/ cleaning solution
1 with a baking soda solution to neutralize the vinegar
1 with water to make sure everything is rinsed.

This gets the brass pretty clean, not sparkling, but clean enough for me. Then I'll trim/chamfer/debur and also run some steel wool on the outside and then they really shine nicely.

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Re: 5.7x28 Random Reloading Discussions

Post by MikeSantor » 10 Aug 2011, 10:42

Ok, Got brass now its time to order the first round of actual equipment. Picking up the Frankford Arsenal Quick-N-EZ Case Tumbler, some simple green, the RCBS Trim Pro with plate from ea and the spear loading manual.

In regards to cleaning, I know the Wiki mentioned the ultrasonic cleaner. HF has a 2.5 liter for 75 bucks. Do you use this in conjunction with something else like the arsenal tumbler or is it more less one or the other? If it is one or the other, Is there a general consensus on using something like the EZ tumbler compared to the ultrasonic cleaner? I have no problem buying both if it will be worth it.


Am I missing anything in the case prep stage? After this purchase I should have everything to get my cases ready to roll in the dillion 550b...

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Re: 5.7x28 Random Reloading Discussions

Post by f3rr37 » 10 Aug 2011, 10:56

MikeSantor wrote:Ok, Got brass now its time to order the first round of actual equipment. Picking up the Frankford Arsenal Quick-N-EZ Case Tumbler, some simple green, the RCBS Trim Pro which I am going to rig up to a drill and the spear loading manual.

In regards to cleaning, I know the Wiki mentioned the ultrasonic cleaner. HF has a 2.5 liter for 75 bucks. Do you use this in conjunction with something else like the arsenal tumbler or is it more less one or the other? If it is one or the other, Is there a general consensus on using something like the EZ tumbler compared to the ultrasonic cleaner? I have no problem buying both if it will be worth it.


Am I missing anything in the case prep stage? After this purchase I should have everything to get my cases ready to roll in the dillion 550b...
I just use the ultrasonic cleaner. My experience with the tumblers is that they're noisy, and I'm living in an apartment, so it is kind of out of the question. The insides of my cases are still a bit dirty, but I'm still shooting sub MOA out of my Rem700 .308 (completely stock) @400-525 yards, so it doesn't bother me.

One thing about tumblers is that the media tends to leave a fine dust on the brass, and when you go to size the brass (this depends on if you size before or after cleaning) with lube, it makes a mess and the dies need to be cleaned way more often... that's just my experience anyway.

Here is how I used to process the brass I put in a tumbler (used my dad's):
Deprime
Tumble
Clean and remove the tumbling media from the flash holes
Size
Trim/chamfer/debur and polish with steel wool
Prime
Measure/throw charges
Seat bullet

Here is how I do it now with my ultrasonic cleaner:
Deprime/Size
Ultrasonic clean
Trim/chamfer/debur and polish with steel wool
Prime
Measure/throw charges
Seat bullet

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Re: 5.7x28 Random Reloading Discussions

Post by Rapier1772 » 10 Aug 2011, 11:11

Are you getting the tumbler for your other brass? With the 5.7 they are using the ultrasonic instead a tumbler to retain the lacquer coating. Or, at least, that is how I understood it :?:

For trimming - did you get a 3-way cutter? It does the deburring/chamfering for you as you are trimming (although mine has been grabbing onto the brass as it is turning recently :wall:)

I would also recommend you get a collet type bullet puller with a .22 caliber collet. If you load something too hot then you can pull the bullets without really damaging them or losing the powder.
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Re: 5.7x28 Random Reloading Discussions

Post by MikeSantor » 10 Aug 2011, 11:11

Im assuming you dont HAVE to deprime before you clean? I say this because the Dillon 550b actually deprimes. So with the Dillon 550b the process would be:

Clean with tumbler or ultrasonic cleaner.
Lube
Trim/chamfer/debur

Then the dillon does the rest. Resizes/deprimes, etc etc.

Am I missing anything?

I also forgot im going to pick up that ABCs of reloading book everyone talks about. So im sure that will explain a lot.

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Re: 5.7x28 Random Reloading Discussions

Post by Grantness » 10 Aug 2011, 11:17

No you don't have to deprime before you clean (if your size die is what you deprime with, the die will get dirty or possibly dent the cases if you dont clean), but as was suggested earlier sometimes its nice to clean AFTER depriming as well to wash off case lube and help clean out the primer pocket some.

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Re: 5.7x28 Random Reloading Discussions

Post by Rapier1772 » 10 Aug 2011, 11:19

Lube & deprime first then clean. You don't want that lube inside your cases when you drop the powder in. Also, this way it cleans your primer pockets as well. Plus, still having that lube on your casings is going gunk up you gun & chamber. The hassle with using the 550 on this round is why I use a single stage - well, its a hassle for me
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Re: 5.7x28 Random Reloading Discussions

Post by MikeSantor » 10 Aug 2011, 11:27

Rapier1772 wrote:Are you getting the tumbler for your other brass? With the 5.7 they are using the ultrasonic instead a tumbler to retain the lacquer coating. Or, at least, that is how I understood it :?:

For trimming - did you get a 3-way cutter? It does the deburring/chamfering for you as you are trimming (although mine has been grabbing onto the brass as it is turning recently :wall:)

I would also recommend you get a collet type bullet puller with a .22 caliber collet. If you load something too hot then you can pull the bullets without really damaging them or losing the powder.
I will be buying that 3 way cutter. And yes, the tumbler was going to be used for other brass as well.
Grantness wrote:No you don't have to deprime before you clean (if your size die is what you deprime with, the die will get dirty or possibly dent the cases if you dont clean), but as was suggested earlier sometimes its nice to clean AFTER depriming as well to wash off case lube and help clean out the primer pocket some.
Got it. I just say the Dillon talking about depriming at one of the stations of the press so I thought it was always done at this step (this step being the actual loading process.)
Rapier1772 wrote:Lube & deprime first then clean. You don't want that lube inside your cases when you drop the powder in. Also, this way it cleans your primer pockets as well. Plus, still having that lube on your casings is going gunk up you gun & chamber. The hassle with using the 550 on this round is why I use a single stage - well, its a hassle for me
So to revise,

deprime
Lube
cut/debur/chamfer
clean

Then into the dillon it goes.

Am I getting it right? Its hard to visualize all this in your head when you dont have any of the stuff yet and have never loaded anything in your life...

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Re: 5.7x28 Random Reloading Discussions

Post by Rapier1772 » 10 Aug 2011, 12:12

The lube needs to be applied before you resize. Most sizing dies also deprime (aka decapping).
Lube
Deprime/resize
Clean or trim
Trim or clean
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Re: 5.7x28 Random Reloading Discussions

Post by MikeSantor » 10 Aug 2011, 12:31

Now im confused.

Bah, Im getting conflicting steps with everything I am reading and watching on youtube with people using the 550B.

No more questions from me till I get my reloading books and read them cover to cover.


Thanks Guys.

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Re: 5.7x28 Random Reloading Discussions

Post by f3rr37 » 10 Aug 2011, 12:36

That's why I use a single stage press. I like to do things in steps, not all at the same time. :p

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Re: 5.7x28 Random Reloading Discussions

Post by MikeSantor » 10 Aug 2011, 15:48

f3rr37 wrote:That's why I use a single stage press. I like to do things in steps, not all at the same time. :p
Problem with that is its great if you want to go slow and make real precise rounds but im looking to do this for plinking/range time ammo. Being a basically unemployed (worked about 20 days in the last year total) shooter, 40 cents a round for SS197 is still too much for just range time. Im looking for a way to make a decent amount of rounds in a decent time. If I could pump out 300 rounds an hour I would be tickled pink. From what i have read, you cant do this volume with a single stage press yet with something like the 550b you can work at a comfortable, relatively accurate pace and still push out 300 rounds an hour.

You obviously all realize at this point all I can do is regurgitate what I have read off line. So please speak up if anything I am saying is way off the mark. Books will be here Friday. Then I can really get into this.

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Re: 5.7x28 Random Reloading Discussions

Post by Grantness » 10 Aug 2011, 17:00

If you're using a depriming only die and then a separate size die, do this:

Deprime
Clean
Lube
Size
Trim/Chamfer/Debur
Clean (optional, but suggested)

You MAY

Clean
Deprime
Lube
Size
Trim, etc
Clean (optional)

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Re: 5.7x28 Random Reloading Discussions

Post by MikeSantor » 10 Aug 2011, 17:06

Im going to end up going with your first option Grant. Only I wont be using a die for right now. Im going to see how slow it goes popping them out with a punch. I wanted to have the brass all ready to go by the time I got my press. So maybe Ill do the first big batch I have (4k+) by hand then get the die once I get the press.

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Re: 5.7x28 Random Reloading Discussions

Post by jmz5 » 10 Aug 2011, 17:17

Do you have a shell holder at least? a punch may deform the brass a little if the base isn't supported.
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Re: 5.7x28 Random Reloading Discussions

Post by MikeSantor » 10 Aug 2011, 17:26

Ok bad idea. I seen other people popping out primers like nothing. this is defiantly not the case with mine.

Justin, I have nothing at this point but brass. I just placed an order for a few odds and ends but nothing real big. mostly books. I guess I will just slow down a little. Like I said before, My goal is to have everything by winter time. I just wanted to atleast have my brass all ready to go by the time I got my press...

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Re: 5.7x28 Random Reloading Discussions

Post by jmz5 » 10 Aug 2011, 17:34

I would wait and deprime them on the press. Don't rush into it. It doesn't take that long, plus you can resize at the same time.
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Re: 5.7x28 Random Reloading Discussions

Post by MikeSantor » 10 Aug 2011, 17:46

Just out of curiosity, how would this set up do? Im down to spend $60~ to get started on this...


http://www.cheaperthandirt.com/40383-1.html" onclick="window.open(this.href);return false;
and
http://www.cheaperthandirt.com/40424-1.html" onclick="window.open(this.href);return false;
and
http://www.cheaperthandirt.com/56772-1.html" onclick="window.open(this.href);return false;

Ok Ill stop. Im a little excited.

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Re: 5.7x28 Random Reloading Discussions

Post by jmz5 » 10 Aug 2011, 17:57

That would work. Be sure to check local ads and yardsales. I picked up a rock chucker ages ago for 40 bucks, came with a pile of bullets too.

http://www.midwayusa.com/viewProduct/de ... ber=261573" onclick="window.open(this.href);return false; shellholder included.
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Re: 5.7x28 Random Reloading Discussions

Post by MikeSantor » 10 Aug 2011, 18:01

*Ordering*

Thanks Justin.

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Re: 5.7x28 Random Reloading Discussions

Post by Grantness » 10 Aug 2011, 18:11

The Lee hand press is VERY cheap. Lee also makes a kit w/ included dies (may be cheaper) that simply use a provided hammer to do all the work. I wouldn't be surprised if they had a depriming die for those. The Lee Challenger press (which I use for 5.7) is great because you can swap dies in seconds w/o having to mess with screwing them to the proper length each time...similar to Hornady Lock'nLoad. It's like $30-40 new. There's also an new Challenger cast press that's much much beefier...great for larger rifle calibers.

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Re: 5.7x28 Random Reloading Discussions

Post by jmz5 » 10 Aug 2011, 18:13

When you get them, don't go all gung ho on it, deprime, clean, prime, and load up about 20-50 of them then go shoot them to make sure they function. You don't want to load a thousand rounds to catch a mistake at the range.
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Re: 5.7x28 Random Reloading Discussions

Post by jmz5 » 10 Aug 2011, 18:13

The hand press sucks for doing anything more than 5 rounds, lol. Get the bench mounted press, you will thank me.
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Re: 5.7x28 Random Reloading Discussions

Post by Grantness » 10 Aug 2011, 18:19

I didn't mean for sizing tons of cases... I thought he was looking for something cheap to deprime with before he got his press (did you order a Dillon or did I imagine that?). W/ a simple depriming die it wouldnt take nearly as much energy to use the hand press. That being said, I've never used it so you would know more than me about that.

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Re: 5.7x28 Random Reloading Discussions

Post by jmz5 » 10 Aug 2011, 18:21

I don't own one, I thought about it for a while to load target rounds at the range, until I tried one. Anyhoo, that press he is ordering is bench mounted and cheaper than the hand press kit. Can't go wrong with having a single stage around anyway.
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Re: 5.7x28 Random Reloading Discussions

Post by Grantness » 10 Aug 2011, 18:25

I edited my earlier post to recommend the Challenger breach lock press. It's cheaper than the Rock Chucker (although perhaps not as sturdy) but the Lock'nLoad type system its a huge advantage to not have to screw in the dies every time. Mute (sp?) point now if he's already placed the order...

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Re: 5.7x28 Random Reloading Discussions

Post by MikeSantor » 10 Aug 2011, 18:27

Grant, I have NOT ordered the Dillon yet. My plan was to start ordering everything for reloading slowly. The goal was to have everything I need by winter. That being said, the first things I wanted to buy was all the stuff to get the brass ready since I already have a few thousand cases.

So I figured I would buy everything I would need for the brass up until the part where the brass goes into the Dillon. I.E. cleaning, trimming, etc, etc.

That way as soon as I do have everything I need I can rock and roll. First thing Im going to do is buy a small bag of 9mm and load that. Maybe 100 rounds or so just so I can learn the equipment and fundamentals and not blow my hand off. Then jump into the 5.7.

Edit, one more thing as to not confuse anyone. the Only reason I was looking at the single stage right now was for de priming. Again, for a total of 50 bucks or so I could get the single stage and de priming tool and at least get a jump on case prep.

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Re: 5.7x28 Random Reloading Discussions

Post by f3rr37 » 10 Aug 2011, 18:29

Hey now, no raggin' on my hand press, I've loaded probably 2K rounds with it, besides, it gives you a pretty decent work out as well. :D

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Re: 5.7x28 Random Reloading Discussions

Post by MikeSantor » 10 Aug 2011, 18:32

I spend 5 days a week at one form of a gym or other. Im down to do it the lazy way...

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Re: 5.7x28 Random Reloading Discussions

Post by Grantness » 10 Aug 2011, 18:42

MikeSantor wrote: The goal was to have everything I need by winter. That being said, the first things I wanted to buy was all the stuff to get the brass ready since I already have a few thousand cases.


You could always send some brass to me for case prep :D I could also send you my own prepped cases for slightly more.

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Re: 5.7x28 Random Reloading Discussions

Post by jmz5 » 10 Aug 2011, 18:51

f3rr37 wrote:Hey now, no raggin' on my hand press, I've loaded probably 2K rounds with it, besides, it gives you a pretty decent work out as well. :D
It takes forever. :p
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Re: 5.7x28 Random Reloading Discussions

Post by MikeSantor » 11 Aug 2011, 16:58

Anyone happen to have an extra Trim Pro Plate from EA they want to part with?

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Re: 5.7x28 Random Reloading Discussions

Post by Rapier1772 » 11 Aug 2011, 17:16

MikeSantor wrote:Anyone happen to have an extra Trim Pro Plate from EA they want to part with?
I think Jay might have an extra one laying around :laugh:
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Re: 5.7x28 Random Reloading Discussions

Post by MikeSantor » 11 Aug 2011, 17:19

Says on the site they are not taking orders for them...

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Re: 5.7x28 Random Reloading Discussions

Post by Rapier1772 » 11 Aug 2011, 17:29

Hmmm. Send them a PM, maybe you'll get lucky :?:
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Re: 5.7x28 Random Reloading Discussions

Post by MikeSantor » 13 Aug 2011, 13:38

So I got the ABCs or reloading yesterday. Read it twice. It has made things a lot clearer on all the steps and the different ways to do things.

I was curious. Does anyone have the Full Harnady LNL setup with the Bullet and case feeder? I have been watching videos on it and that thing really pumps out some ammo. I was curious how this works with the 5.7mm. I read from one of keymasters posts that priming and re sizing does not work on the LNL though. So all cases would have to be preped and sized. But once all that is done it is pretty much how fast you can load raw materials and pull levers...

Im starting to see a glimmer of hope that my poor butt may be able to shoot 5.7 on the weekly basis instead of once a month after I check for loose change in all the couches...

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Re: 5.7x28 Random Reloading Discussions

Post by VeTTeMaNC486 » 13 Aug 2011, 19:34

Nothing wrong with the Lee Handpress as long as you don't over do it. More than enough for sizing 5.7 and pistol cases. .223 and .45-70 is fairly easy with it as well. I tried to use it for .50ae and thought I got the case stuck in the die. I will never try that again. Like to never have gotten it open.

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Re: 5.7x28 Random Reloading Discussions

Post by MikeSantor » 17 Aug 2011, 19:05

So what is everyone using for trimming besides the trim pro???

I got my lee press and decapper today. Not to bad of a set up. Got a couple hundred done. Got a couple thousand left...

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Re: 5.7x28 Random Reloading Discussions

Post by MikeSantor » 26 Aug 2011, 08:01

Just got off the phone with Hornady to get a LNL plate. The good news is he made an extra plate whenever the last order was placed, the bad news is it was a little more expensive than I thought. I thought they were like $119 shipped. I think my total came out to like $135 after shipping. Ahh well.

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Re: 5.7x28 Random Reloading Discussions

Post by VeTTeMaNC486 » 26 Aug 2011, 21:07

MikeSantor wrote:Just got off the phone with Hornady to get a LNL plate. The good news is he made an extra plate whenever the last order was placed, the bad news is it was a little more expensive than I thought. I thought they were like $119 shipped. I think my total came out to like $135 after shipping. Ahh well.
Aren't you supposed to size seperately with that set up? I guess it doesn't matter if you are having to trim.

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Re: 5.7x28 Random Reloading Discussions

Post by MikeSantor » 27 Aug 2011, 03:05

Vette, I really dont know as I am kind of flying off the seat of my pants. Never reloaded before. this is how I am doing it.

On singls stage:
Decap
Lube
resize
trim
clean primer pocket
clean

On LnL:
prime
charge
crimp



From all my research I believe this to be the correct order...

VeTTeMaNC486
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Re: 5.7x28 Random Reloading Discussions

Post by VeTTeMaNC486 » 27 Aug 2011, 05:22

MikeSantor wrote:Vette, I really dont know as I am kind of flying off the seat of my pants. Never reloaded before. this is how I am doing it.

On singls stage:
Decap
Lube
resize
trim
clean primer pocket
clean

On LnL:
prime
charge
crimp



From all my research I believe this to be the correct order...
Might want to seat a bullet after charging :D .
Just messing with you. May I ask, how are you crimping?

And about the shell plate, it seems it has been posted before that the hornady LnL shellplate doesn't support the case enough (primer hole too big) and the case can get messed up. With the need to trim this caliber after basically every firing, I guess it doesn't matter.

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Re: 5.7x28 Random Reloading Discussions

Post by MikeSantor » 27 Aug 2011, 08:23

Bullets are too costly for my blood. I'm loading spitballs for practice.

As for crimping, Im getting a die that is made from Grantness. He moddifies a Lee crimp die to work on the 5.7.

As far as the lnl goes, I have heard conflicting stories. The keymaster says you just can not decap. Then I read another member who's name slips my mind, said he does everything on the lnl with no problems. Who knows. I guess ill find out soon.

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Re: 5.7x28 Random Reloading Discussions

Post by TKO » 28 Aug 2011, 15:02

New to this forum, but not to volume shooting. I admit I've done far more pistol than rifle, but here is all I've done to successfully reload the 5.7:

Redding 2 die set
Hornady One Shot Spray
Single stage for now,rather than Dillon Progressive
RCBS powder measure
40 gr. V-Max bullet
Winchester AutoComp

The Redding dies are smooth and work well. Surprised how the bullet seating & crimp worked out (technique learned from Redding). Bottom line, all good (even without cleaning primer pocket). No case trimming to date after four reloads, just using Elite case gauge to tell me. Accuracy & reliability: excellent.

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Re: 5.7x28 Random Reloading Discussions

Post by Rodentman » 04 Sep 2011, 14:58

I've decided to use the new RCBS crimp remover tool (90386) in the case prep center. I can seat the primers w/o using it, but they seat easier, but still firmly seated, after crimp removal. And the primer will have a better seal in the case. I use a B&D cordless screwdriver and the Lee lock stud and cutter setup. I chamfer and debur on the case prep center with the new carbide tools.

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iFire
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Re: 5.7x28 Random Reloading Discussions

Post by iFire » 05 Sep 2011, 09:33

Heres a bit of data from a recent outing...

AutoComp in the PS90 is nearly un-touchable for consistency, smooth operation, and reliability in all of my testing - and all of these rounds came out of the Dillon, so it obviously meters well...

5.2-5.5 grs of AutoComp with a 40gr Vmax is my prefered 'sweet spot' in the charge range to pull the most consistency and reliability...

--------------
PS90 - Triple Rail

5.5 grs Autocomp
40 gr Vmax
CCI400
SS197 Brass

2280 fps Average
9 fps Standard Deviation
N=15

Notes: Very accurate, ridiculously consistent...
--------------
PS90 - Standard

5.5 grs Autocomp
40 gr Vmax
CCI400
SS197 Brass

2234 fps Average
10 fps Standard Deviation
N=20

Notes: New(er) gun than my TR, getting a little less velocity probably until it breaks in a bit more...
--------------

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Re: 5.7x28 Random Reloading Discussions

Post by s64woody » 12 Oct 2011, 12:26

Grantness and all others. I suspect we could find a linear correlation between the bearing surface of a given projectile and the mass of the projectile. We already know two "sweet" spots in this function: SS195 and SS197. One possible complication is that the two bullets use different density cores. It appears to be all about a friction to mass relationship, no?
Many of the different bullets in the mid 30 grain wt. range appear to not work well in the blowback action because this relationship of bearing surface to mass does not allow the bullet to "tune" with the pressure cycle of the Fn pistol. Probably true for the rifle, have not gone there.
will think more on it, and maybe run some figure if I can.

davemodica
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Re: 5.7x28 Random Reloading Discussions

Post by davemodica » 19 Oct 2011, 09:55

im using the redding fl die, the shoulder looks nothing like the factory shoulder when i get done, are you guys getting the shoulders to return to their original shape?

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Re: 5.7x28 Random Reloading Discussions

Post by WolfRulz » 26 Oct 2011, 20:22

iFire wrote:
VeTTeMaNC486 wrote: We don't really learn much about that kinda stuff in my Electrical Engineering classes :laugh: . (Which I am finally starting to get into after taking so many freaking core classes/pre-reqs... 2 more years and counting... :D ).

iFire, if you do not mind, could you post a picture of the projectiles in question side by side (40gr vmax, 35gr nlf, 35gr nxt, and possibly the 28gr ss195), it would probably go well with our discussion.
3 years of Various Physics, 2 years of BioChemistry, 4 years of Physical Chemistry and 2 years of Organic Chemistry - Im glad college is just a memory now for me...

Good luck with your final 2 years :p

Some where Nuclear Rocket Science is going to come inot play here and I'm going to fall back to STICKS and ROCKS :laugh: - but seriously - there is so much great info here, I find myself spnding days digesting -- so many great posts. Thanks to all - great pointers. :thumb:

---

I have Lots of .224 bullets, including the few you mentioned - when i get the NTX's i will post a pic of as many of them as possible in a neat little line...
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Re: 5.7x28 Random Reloading Discussions

Post by MikeSantor » 11 Nov 2011, 14:12

Best part about working for a construction company is when there is nothing to do, you get to build stuff.

Started my reloading bench. 1' thick MDF for the top with 1/16'' steel on the top. The will be a 1' deep cabinet and shelf across the back of it. Lets are getting made from 4''x 4'' green treated posts. All crap we have laying around the garage...

Image

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Re: 5.7x28 Random Reloading Discussions

Post by s64woody » 16 Nov 2011, 21:01

looked at the Lee case trimmer system. Interesting, especially due to the possibility of using an electric drill to power the thing. Does anyone have some first hand experience using this system? I am concerned with the OAL changing with trash and such on the inside of the case at the primer flash hole. Most of my .308 cases have a a lot of "stuff" on the inside of the flash hole, and I suspect that would be a bad thing with this case.

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Re: 5.7x28 Random Reloading Discussions

Post by Rapier1772 » 28 Apr 2012, 16:14

Max chamber pressure on PS90 is the same as the FsN right? (50KPSI)
When do mags start popping though? Anyone do tests on that for the PS90?
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Re: 5.7x28 Random Reloading Discussions

Post by panzermk2 » 28 Apr 2012, 22:01

Rapier1772 wrote:Max chamber pressure on PS90 is the same as the FsN right? (50KPSI)
When do mags start popping though? Anyone do tests on that for the PS90?

Some PS90's start popping at 38,ooo psi.
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Re: 5.7x28 Random Reloading Discussions

Post by Rapier1772 » 28 Apr 2012, 22:10

Wow, that's lower that I thought. Thanks
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Re: 5.7x28 Random Reloading Discussions

Post by panzermk2 » 28 Apr 2012, 22:26

Rapier1772 wrote:Wow, that's lower that I thought. Thanks

Older riveted stocks are worse. Add in the stocks with the mold defect and things go downhill fast.
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Re: 5.7x28 Random Reloading Discussions

Post by CoryS78 » 22 Oct 2014, 11:32

So, I'm reloading 40gr VMAX over longshot and I was using iFire's data, it has been performing great but I'm curious the opinion on if this looks like normal shoulder setback:
Image
The case in the middle is a resized case as a reference. I've just read comments about shoulder separation and wanted to be sure I wasn't risking any issues before I loaded a couple hundred of them.

EDIT: I measured a resized case from the shoulder using a .28 comparator and the resized case was .932, the fired cases were in the .975-990 range. seems like a lot of movement to me, but I'm not sure how much is normal for this cartridge.

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Re: 5.7x28 Random Reloading Discussions

Post by panzermk2 » 22 Oct 2014, 13:58

Pretty normal. Shoulder movement will be greater even more when fired from P90/PS90
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Re: 5.7x28 Random Reloading Discussions

Post by Rapier1772 » 22 Oct 2014, 14:07

Those are fine. If the shoulder is about 1/2 way up the neck (more or less), that's when you should be concerned. But like Jay said, depends on the gun used (PS90/AR57/FsN/TC)
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Re: 5.7x28 Random Reloading Discussions

Post by CoryS78 » 22 Oct 2014, 15:01

Yeah, this was with my PS90 so I guess I'm doing pretty well then. Time to ramp up the press! I have about 200 cleaned and trimmed cases waiting to go :)

Thinking I'll run 250 SS190s next, since I still have about 900 from my 1000 order. So many projectiles, so little time...

EDIT: is there a way to reduce the shoulder setback without affecting feed reliability, perhaps with a slightly stiffer recoil spring? I imagine if one was to be made it would be on EA's site, maybe I missed it... I think I saw there is a heavier weight for the bolt as well...

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Re: 5.7x28 Random Reloading Discussions

Post by panzermk2 » 22 Oct 2014, 21:49

We have both a heavier rate reducer and heavier springs. In this case I would leave the recoil springs alone! and go with the heavy duty rate reducer.
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catalina2014
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Oh Wise Grantness Loading Alliant Unique?

Post by catalina2014 » 29 Oct 2014, 15:20

Grantness, do you or any of your numerous followers have any data for Unique??

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Re: 5.7x28 Random Reloading Discussions

Post by Rapier1772 » 29 Oct 2014, 20:14

Grant hasn't dropped in for over a year unfortunately but from this thread: 5.7x28mm Reloading
Grantness wrote:The IMR powders are more than likely too slow... Unique is too fast.... Best powders I know of are HS7, True Blue, Blue Dot, Acc#7, VVN105, VV3N38, Longshot, and Alliant ProReach looks good so far, but Im still testing...
Browse the reloading subforum for more info. Try the search. Check out the forum wiki.
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Re: 5.7x28 Random Reloading Discussions

Post by lawraven22 » 22 Jan 2017, 15:22

Recently worked up a decent subsonic 5.7x28 load for my AR-57 SBR (9" barrel) for use with my Gemtech SAR57 suppressor. Two powders worked pretty well, but case prep is a bear. Not an easy or quick round to reload. Used a single stage Hornady press I found on sale on Amazon. I do case cleaning one day (simple green/water soak and agitate for 10-15 min then water wash and dry), sizing and deprime second day, hand prime on third day and powder measure (with powder trickle by hand to get charges EXACT) and bullet seating on fourth day. Use Lee die set. I didn't crimp but Lee makes a crimper if you so need.

First:
Powder: True Blue 3.0 gr
Bullet: Hornady 55gr FMJ-BT
Case: once fired American Eagle
Primer: Winchester small pistol
COAL: 1.575

Second:
Powder: Power Pistol 2.8 gr
Bullet: Hornady 55gr FMJ-BT
Case: once fired American Eagle
Primer: Winchester small pistol
COAL: 1.575

The true blue is very fine grained compared to the round flakes of the power pistol. Both burn pretty clean and leave little residue with the TB being a little cleaner. These loads are just enough to cycle the heavy, heavy AR57 bolt (it's a simple blow back design) but remain subsonic through the 9" barrel. Be careful not to remove the case lacquer by tumbling them in case tumbler. However, I also apply a little dry lube spray to the rounds just before loading into the FN 50rd mags to help feeding. Seems to help a little.

As always: Use these loads @ your own risk.

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