Loaded first 50 Rounds

Reloading info for the 5.7x28mm

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blackhawk795
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Loaded first 50 Rounds

Post by blackhawk795 » 17 Mar 2011, 17:33

Just got done loading my first 50 rounds with 40gr Vmax Bullets and 5.6g of TrueBlue at 1.585, I am using a Hornady die without Crimp...I ended up testing a few rounds for bullet setback by chambering them 2 or 3 times. Max i had less than .002 movement..just wondering what people think about this? I am sure this happens in my other pistol/rifle rounds but after reading about someone blowing there gun apart...it gets me over looking things like this once i get up into the hotter loads.

Thanks

locutus
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Re: Loaded first 50 Rounds

Post by locutus » 17 Mar 2011, 18:12

My procedure for small rounds like this, .25 ACP anbd the various .32s is to load a little below max, and use factory ammo for "hotter" performance. Just my $.02! :ponder:

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iFire
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Re: Loaded first 50 Rounds

Post by iFire » 17 Mar 2011, 21:29

blackhawk795 wrote:Just got done loading my first 50 rounds with 40gr Vmax Bullets and 5.6g of TrueBlue at 1.585, I am using a Hornady die without Crimp...I ended up testing a few rounds for bullet setback by chambering them 2 or 3 times. Max i had less than .002 movement..just wondering what people think about this? I am sure this happens in my other pistol/rifle rounds but after reading about someone blowing there gun apart...it gets me over looking things like this once i get up into the hotter loads.

Thanks
So you're saying that prior to chambering the round you were at 1.585" OAL (for instance) and after chambering the round the OAL was now 1.583"? Is this correct?

If so - yes, 1.583 OAL is just fine - obviously your neck tension is good if the MAX change is only .002" on some rounds - I personally load mine at 1.575" - I would be worried if you were seeing varying setbacks of all different lengths and especially worried if you were seeing large changes in OAL - for instance 1.585 moving to 1.550 or more - then your neck tension (or another factor) would be causing a serious problem....

If this is not correct, maybe explain more?

Congrats on your first 5.7 rounds... :thumb:

blackhawk795
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Re: Loaded first 50 Rounds

Post by blackhawk795 » 18 Mar 2011, 17:17

Nope that is correct.....thanks

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iFire
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Re: Loaded first 50 Rounds

Post by iFire » 18 Mar 2011, 17:30

No problem :thumb:

Another thing is that the .002" change you are seeing could just be that the plastic tip is being EVER SO SLIGHTLY flattened/deformed.

.002" is such a small change it might even be hard to visually notice. So yeah, your good to go...

Its a lot of fun to load 5.7 rounds, and its even better to shoot them :D
Last edited by iFire on 18 Mar 2011, 17:34, edited 1 time in total.

blackhawk795
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Re: Loaded first 50 Rounds

Post by blackhawk795 » 18 Mar 2011, 17:30

Sunday i plan on heading down to the range and heating the barrel up :)

tparty
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Re: Loaded first 50 Rounds

Post by tparty » 20 Mar 2011, 06:20

The Hornady die works great for me. How are you metering the powder?

Let us know how it goes at the range--you may want to note how the gun's recoil compares to comparable factory rounds (SS197). Pics of the cases (necks and primers) would be great.

blackhawk795
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Re: Loaded first 50 Rounds

Post by blackhawk795 » 20 Mar 2011, 16:27

Metering with a RCBS digital scale by hand, which is being updated to a medical grade powder scale in about a week :) Anyways Pressure was good at 5.6 grains of trueblue, but i did notice right before i started shooting that the necks on my resized brass seemed a little pushed back further than factory ammo, maybe i should consider backing the hornady die off 1/4 turn.....

next round 5.7 and 5.8 grains with chrono data


Note: This gun rocks :) love the accuracy/light recoil

Sized vs factory
Image
Last edited by blackhawk795 on 20 Mar 2011, 16:51, edited 1 time in total.

blackhawk795
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Re: Loaded first 50 Rounds

Post by blackhawk795 » 20 Mar 2011, 16:50

Outer brass is ss197 primers and middle 5.6 grains of trueblue, 2nd picture is Fired brass vs unfired factory brass


Image

Image

Bones
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Re: Loaded first 50 Rounds

Post by Bones » 20 Mar 2011, 16:55

:clap: :clap: :clap: Good job Its a tricky little SOB

tparty
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Re: Loaded first 50 Rounds

Post by tparty » 20 Mar 2011, 18:27

Nice pics. Based on the primer above, it appears your loads are solid. It looks like there are two horizontal lines just below the necks on the elevation (vertical) photographs of the cases. Were these just scuffs, or did it look like the brass was separating (neck separation)? I played with the photos in photoshop, but couldn't really tell. A lot of folks look at this under magnification to get a better idea.

The cartridge is certainly challenging to reload--I base this on 25 years of reloading experience. That said, it's rewarding to reload and even more fun to shoot. The weapon has some tremendous tactical advantages: minimal recoil, light weight, great accuracy, flat shooting, and high capacity. A truly innovative and effective handgun platform.

blackhawk795
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Re: Loaded first 50 Rounds

Post by blackhawk795 » 20 Mar 2011, 19:54

tparty wrote:Nice pics. Based on the primer above, it appears your loads are solid. It looks like there are two horizontal lines just below the necks on the elevation (vertical) photographs of the cases. Were these just scuffs, or did it look like the brass was separating (neck separation)? I played with the photos in photoshop, but couldn't really tell. A lot of folks look at this under magnification to get a better idea.

The cartridge is certainly challenging to reload--I base this on 25 years of reloading experience. That said, it's rewarding to reload and even more fun to shoot. The weapon has some tremendous tactical advantages: minimal recoil, light weight, great accuracy, flat shooting, and high capacity. A truly innovative and effective handgun platform.

They are just scuffs....i myself looked at them zoomed in with photo shop, but with full Res not the forum Res

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