iFire's PS90 Load Data
Moderator: Grantness
Re: FF's 5.7x28mm Load Data
Had to split thread into two parts- PS90 and FiveseveN data - because I went over the "allowed character limit" :laugh:
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Re: FF's 5.7x28mm Load Data
When I was playing with 55gr fmjs and Blue Dot my mag was popping up and I was only loading 5 in it. Sometimes it would pop on the last shot too (I believe). I did not find any correlation between velocity reading and the mag popping.Forest Fire wrote:Ok, let's say I build a ladder of rounds - 3 each of 5 different charge weights - then I would have 15 rounds in the mag for that particular test...
I have loaded as many as 25 or so for testing and as little as maybe 3 or 4.
As would be expected, as I shoot the strings of shots, it is continually moving closer to empty.
The only thing I could think to do differently, if it would even matter, is to load some dummy rounds on the press and use them as fillers so that my mag is "nearly full" during the test strings and see what (if any?) difference it makes. Dummy rounds would just be smart so that nothing gets mixed up...
Re: FF's 5.7x28mm Load Data
Good to know. I might not spend much time testing the difference the number of rounds in the mag makes then...VeTTeMaNC486 wrote:
When I was playing with 55gr fmjs and Blue Dot my mag was popping up and I was only loading 5 in it. Sometimes it would pop on the last shot too (I believe). I did not find any correlation between velocity reading and the mag popping.
see this post, it has some ideas of mine about the mag popping up...
viewtopic.php?f=19&t=9672" onclick="window.open(this.href);return false;
Re: iFire's PS90 Load Data
iFire, any updates for your load ladder on the 5.7? Going for long range accuracy, what would you recommend for the AR57 16" barrel?
Re: iFire's PS90 Load Data
The updated format will be coming soon - I have been completely revising the layout to include less characters in the "code" :thumb:
Re: iFire's PS90 Load Data
PS90 Data Updated with my new "format"
Includes Several New Powders as well :thumb:
Includes Several New Powders as well :thumb:
Re: iFire's PS90 Load Data
I've had some of my lowest Standard Deviations with AutoComp in the 5.0-5.2 gr. Range in the PS90 - That would be a good load to try our for accuracy I believe with the 40 gr Vmax...338lm wrote:iFire, any updates for your load ladder on the 5.7? Going for long range accuracy, what would you recommend for the AR57 16" barrel?
There are several other loads you could try as well using powders like longshot, hs6, etc... It just depends how much testing you would want to do...
Re: iFire's PS90 Load Data
Hello iFire I just have a quick possibly stupid question for you. All your data is great by the way cause you can't find anything like it anywhere. But my question is are you using small pistol or small rifle primers in your load data, I have heard of people using both. I may have missed it but just wanted to clarify. Thanks for the info!
Re: iFire's PS90 Load Data
Small Rifle Primers - Specifically CCI 400wyndone wrote:Hello iFire I just have a quick possibly stupid question for you. All your data is great by the way cause you can't find anything like it anywhere. But my question is are you using small pistol or small rifle primers in your load data, I have heard of people using both. I may have missed it but just wanted to clarify. Thanks for the info!
I did have the data on the top before - but it got removed (by me on accident) when I did a complete re-formatting of the data layout
I will add it back to the main post soon :thumb:
Re: iFire's PS90 Load Data
I didn't know Acc#7 ever changed? What's that about?
Re: iFire's PS90 Load Data
You can actually visually tell the difference between the old and the new if you had them both to compare...Grantness wrote:I didn't know Acc#7 ever changed? What's that about?
When I called them they said they switched manufactures and that it was the "same" - of course as soon as i did a side by side comparison I found out that wasnt true - Velocity is around 100 fps less with an equal load of the new powder...
The new powder 'may' have a higher max than the old powder though and thus be able to achieve the same velocities, but I havent tested it thoroughly enough yet to know for sure...
Re: iFire's PS90 Load Data
Do you know when they changed manufacturers?
Re: iFire's PS90 Load Data
Not sure exactly what date they changed it... Below is the info I posted earlier about the change and how to tell the differenceGrantness wrote:Do you know when they changed manufacturers?
iFire wrote:
Quick note:
1)The "new" A#7 formula will not get you the same velocity as the old formula - expect less velocity at any given charge - The max loads i listed are ok to use because the new fromula is slightly "weaker"... The new formula might have a higher max charge because of this, but it still wont get you up to the same velocity. It just doesnt work as well as the old formula...
If your unsure of which one you have, this is how mine are distinguished:
Old
1) Lot number is a sticker on the bottom of bottle (No silver bar on back of label)
2) DOES NOT have "Made in USA" on side of bottle in red
New
1) Lot number is on the back (right top) of the label in a silver bar
2) On the side of the bottle under Western Powders it says "Made in USA" in red
Re: iFire's PS90 Load Data
Added some 35gr Nosler Lead Free data.
Also added a bunch more shots to the sample size of various loads. My load notebook has SO many strings of shots that I still dont have included in the data. Its just takes so much time to go through and re-read it all :laugh:
Also added a bunch more shots to the sample size of various loads. My load notebook has SO many strings of shots that I still dont have included in the data. Its just takes so much time to go through and re-read it all :laugh:
Re: iFire's PS90 Load Data
Loaded 30 rounds with 40 gr VMAX with 5 grains of Alliant Steel - shot 15 rounds this afternoon from PS-90 at 75 yds. All 15 rounds cycled properly. Primers and casings looked good. Sorry no chronometer data.
Thanks for the load data.
Rob
Thanks for the load data.
Rob
Last edited by rlex on 21 Dec 2012, 06:41, edited 1 time in total.
Re: iFire's PS90 Load Data
Your welcome - Glad to see that Steel worked well for you - @ 5.0grs with a 40gr vmax its very consistent and safe!rlex wrote:Loaded 30 rounds with 40 gr VMAX with 5 grains of Alliant Steel - shot 15 rounds this afternoon from PS-90 at 75 yds. All 15 rounds cycled properly. Primers and casings looked good. Sorry no chronometer data.
Thanks for the load data.
Rob
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Re: iFire's PS90 Load Data
I have some data somewhere with hs6 and 55gr fmj up to 6.0 grains, was only sample size of one though. It functioned fine and I believe it was around 1900fps, but I would have to find my notes to verrify this. I wonder how the trajectory would compair with ss197?
Seems like the new accurate #7 leaves a lot to be desired compared to the old
Posting from my droid so I reserve the right to have terrible grammer :p
Seems like the new accurate #7 leaves a lot to be desired compared to the old
Posting from my droid so I reserve the right to have terrible grammer :p
Re: iFire's PS90 Load Data
35gr NTX data added...
Re: iFire's FiveseveN Load Data
has anyone got load data on universal powder? maybe clays?
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Re: iFire's FiveseveN Load Data
For what bullet/use? I've used clays in a subsonic test but it wasn't worth pursuing.
Have you tried the search function? I don't think they are mentioned in the Forum Wiki but couldn't swear to it.
Have you tried the search function? I don't think they are mentioned in the Forum Wiki but couldn't swear to it.
How to post pics & videos: viewtopic.php?f=3&t=6363
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Re: iFire's FiveseveN Load Data
I looked have seen anything on either powder only longshot and hs6
Re: iFire's FiveseveN Load Data
40 gr nosler ct in a ps90
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Re: iFire's PS90 Load Data
Since it is for a PS90, I moved your posts over to this thread. Trying to keep it as straight as possible :thumb:
I do not think Clay's is a good powder for this round. At 2.7gr it was filling the case & the speeds weren't anything impressive & accuracy kind of sucked.
A quick search for universal powder came up with this: viewtopic.php?f=19&t=10903" onclick="window.open(this.href);return false;
I do not think Clay's is a good powder for this round. At 2.7gr it was filling the case & the speeds weren't anything impressive & accuracy kind of sucked.
A quick search for universal powder came up with this: viewtopic.php?f=19&t=10903" onclick="window.open(this.href);return false;
Grantness wrote:Universal: Too fast, don't bother.
How to post pics & videos: viewtopic.php?f=3&t=6363
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Re: iFire's PS90 Load Data
thanks I figured clays would suck but universal has the same properties as accurate 5 and the load data is there for that but I hate the fact accurate is so hard to find in wisconsin
Re: iFire's PS90 Load Data
The don't even list accurate 5 which is great in the ps90 fard to find where i live
Re: iFire's PS90 Load Data
Western Powders listed their own loads for Acc#5, but everything for #7 is far superior.
Re: iFire's PS90 Load Data
Grant what about titegroup any experience? I have 2 stores to get powder from and don't want to order it on line really both carry alot of hogdons and thats about it so am limited at what i can get I might just need to go north and get true blue or 7 next packers game lol
Re: iFire's PS90 Load Data
I don't have any experience with titegroup. The burn rate looks too fast for optimum performance.
Re: iFire's PS90 Load Data
thanks
Re: iFire's PS90 Load Data
(I realize it has been almost a year since iFire has visited the forum, but I figured I would throw this question out for anyone to answer).iFire wrote:Notes: (OP trimmed down to data relevant to question by 500SWfan)
SS195 1x brass | CCI 400 SR Primers | CE Pro Chrony @ 10 feet |
OAL:
| 40gr Vmax 1.575" |
This thread will contain loads that I have found to work well in my PS90 Carbine. Your gun may differ.
PS90
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40 Grain Hornady Vmax + True Blue
40 Gr Vmax
True Blue
5.6 Grs
FPS - 2213
Sample Size 20
Stand. Dev. 12
Ft Lbs Energy 435
Notes: Standard Function
-------------------
40 Gr Vmax
True Blue
5.7 Grs
FPS - 2254
Sample Size 20
Stand. Dev. 12
Ft Lbs Energy 451
Notes: Hit or miss function - may cause a jam or mag pop - I am not caring much for True Blue in the PS90…
-------------------
40 Gr Vmax
True Blue
6.0 Grs
FPS - 2311
Sample Size 3
Stand. Dev. 5
Ft Lbs Energy 475
Notes: Hit or miss function - may cause a jam or mag pop - I am not caring much for True Blue in the PS90…
-------------------
40 Gr Vmax
True Blue
6.1 Grs
FPS - 2351
Sample Size 13
Stand. Dev. 12
Ft Lbs Energy 491
Notes: Hit or miss function - may cause a jam or mag pop - I am not caring much for True Blue in the PS90…
-------------------
40 Gr Vmax
True Blue
6.3 Grs
FPS - 2388
Sample Size 8
Stand. Dev. 8
Ft Lbs Energy 506
Notes: Hit or miss function - may cause a jam or mag pop - I am not caring much for True Blue in the PS90…
-------------------
40 Gr Vmax
True Blue
6.4 Grs
FPS - 2413
Sample Size 2
Stand. Dev. 15
Ft Lbs Energy 517
Notes: Ok function for these shots - most likely will jam or cause the mag to pop up in rapid fire strings however
-------------------
40 Gr Vmax
True Blue
6.5 Grs
FPS - 2435
Sample Size 7
Stand. Dev. 18
Ft Lbs Energy 527
Notes: Ok function for these shots - most likely will jam or cause the mag to pop up in rapid fire strings however
-------------------
40 Gr Vmax
True Blue
6.6 Grs
FPS - 2456
Sample Size 2
Stand. Dev. 8
Ft Lbs Energy 536
Notes: Ok function for these shots - most likely will jam or cause the mag to pop up in rapid fire strings however
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40 Gr Vmax
True Blue
6.7 Grs *Max*
FPS - 2501
Sample Size 8
Stand. Dev. 13
Ft Lbs Energy 556
Notes: I would call this the Max in terms of potential charge - However it still jams or causes the mag to pop up
-------------------
40 Gr Vmax
True Blue
6.8 Grs *Caution*
FPS - 2526
Sample Size 8
Stand. Dev. 10
Ft Lbs Energy 567
Notes: Not recommended - The brass can handle this load, but the gun will jam and will not run smoothly…
-------------------
40 Gr Vmax
True Blue
6.9 Grs *Caution*
FPS - 2559
Sample Size 8
Stand. Dev. 9
Ft Lbs Energy 582
Notes: Not recommended this high - too many jams - I finally lost a primer - Do not use…
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Excellent work iFire. I was reviewing your 40g V-Max True Blue data, and I noticed something. Your starting load is 5.6g TB, and after that you started having hit or miss function problems. But, in their current load manual (http://www.ramshot.com/wp-content/uploa ... _rifle.pdf" onclick="window.open(this.href);return false;), Ramshot lists 5.6g TB as the MAXIMUM load. Granted, their data was developed with the FiveseveN rather than the PS90, but I was wondering if that may be the reason for the hit or miss functioning.
Re: iFire's PS90 Load Data
I do not have a PS90 but I believe you might be on to something. Crunching the numbers from the Ramshot page to figure the velocities at the 18% increase they say for a 10" barrel would put the velocity approximately at 2183fps out of a 10" barrel. His velocity is a little higher which is caused by using CCI 400 primers, which I personally found to be a little hotter then both of the primers listed in that article. Also if you look at the pressure listed at max load it is approx 48,800 psi. If that pressure is accurate his loads may be pushing close to the maximum pressure which could be causing his inconsistencies and magazine pops. Also True Blue may not be the optimum powder for the PS90 platform. I believe that I read it somewhere that slower burning powders are better, because they peak later in pressure. But one of the long time guru's here will have to weight in on that. Also he didn't list whether his barrel is the 16.5" or the 10" and whether he has EA's HD mods done to his PS90 which might change the parameters of the results.
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Re: iFire's PS90 Load Data
Bump - tired of trying to find this thread over and over. Is there a way to sticky it since it is the thread that people keep referring to?
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Re: iFire's PS90 Load Data
Done.kmiles wrote:Bump - tired of trying to find this thread over and over. Is there a way to sticky it since it is the thread that people keep referring to?
Jay Wolf
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Re: iFire's PS90 Load Data
Has anyone tried the 35gr NTX with True Blue? Ifire posted some data on that bullet with other powders, but True Blue is what I have. The bullet is longer than the 40gr Vmax, so with the same OAL I will get more pressure.
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Re: iFire's PS90 Load Data
I think I have pretty descent FPS with 36g Barnes Varmint Grenades and 5.5 grains of AutoComp. Last batch was 2320 out of a 16 inch barreled bolt action. Does that seem on par with what others are getting from that barrel length or should I be getting faster?
1x fired FN Brass
CCI 400 small rifle primers
5.5g Autocomp
36g Varmint Grenades
1.582 OAL
1x fired FN Brass
CCI 400 small rifle primers
5.5g Autocomp
36g Varmint Grenades
1.582 OAL
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Re: iFire's PS90 Load Data
Yep with 1x brass it is.
The 35gr VG has a long shank for weight, meaning more bullet in contact with rifling, so you can't push it as fast as a same wight or even slightly heavier bullet with less shank.
The 35gr VG has a long shank for weight, meaning more bullet in contact with rifling, so you can't push it as fast as a same wight or even slightly heavier bullet with less shank.
Jay Wolf
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Re: iFire's PS90 Load Data
panzermk2 wrote:Yep with 1x brass it is.
The 35gr VG has a long shank for weight, meaning more bullet in contact with rifling, so you can't push it as fast as a same wight or even slightly heavier bullet with less shank.
fantastic, guess it is time to start playing with other bullets then. I wanted some 55g sub sonic loads as well so will start trying those out. I see the data for the 40g VMAX up around the 2500FPS range, you think that is about the limit for that round as well?
I looked on your web page for brass but could not see anything. Do I have to be invited to see your page? I have a few thousand of this once fired brass I got for free so no gonna complain right now. It is kinda finicky though, those FN guns do a number on brass. Would love to get my hands on some virgin brass just for the bolt gun, it is way less damaging and I feel I could get more reloads out of it on a conservative load.
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Re: iFire's PS90 Load Data
Maybe the browser, try this link.
http://www.eliteammunition.com/#!/Elite ... y=18984037" onclick="window.open(this.href);return false;
http://www.eliteammunition.com/#!/Elite ... y=18984037" onclick="window.open(this.href);return false;
Jay Wolf
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Re: iFire's PS90 Load Data
panzermk2 wrote:Maybe the browser, try this link.
http://www.eliteammunition.com/#!/Elite ... y=18984037" onclick="window.open(this.href);return false;
How does the difference in case capacity affect pressure?
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Re: iFire's PS90 Load Data
The case is a combustion chamber. Smaller chamber means higher pressures with the same amount of powder when compared to a larger chamber.
Jay Wolf
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