iFire's PS90 Load Data

Reloading info for the 5.7x28mm

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kos1966
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Re: iFire's FiveseveN Load Data

Post by kos1966 » 30 Jul 2011, 17:55

I looked have seen anything on either powder only longshot and hs6

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Re: iFire's FiveseveN Load Data

Post by kos1966 » 30 Jul 2011, 17:57

40 gr nosler ct in a ps90

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Re: iFire's PS90 Load Data

Post by Rapier1772 » 30 Jul 2011, 18:23

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;
Grantness wrote:Universal: Too fast, don't bother.
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Tactical Search Instructions & tips: http://www.fivesevenforum.com/viewtopic.php?f=3&t=12045

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Re: iFire's PS90 Load Data

Post by kos1966 » 30 Jul 2011, 18:29

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

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Re: iFire's PS90 Load Data

Post by kos1966 » 30 Jul 2011, 18:36

The don't even list accurate 5 which is great in the ps90 fard to find where i live

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Re: iFire's PS90 Load Data

Post by Grantness » 30 Jul 2011, 18:55

Western Powders listed their own loads for Acc#5, but everything for #7 is far superior.

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Re: iFire's PS90 Load Data

Post by kos1966 » 31 Jul 2011, 04:43

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

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Re: iFire's PS90 Load Data

Post by Grantness » 31 Jul 2011, 13:13

I don't have any experience with titegroup. The burn rate looks too fast for optimum performance.

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Re: iFire's PS90 Load Data

Post by kos1966 » 31 Jul 2011, 15:24

thanks

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Re: iFire's PS90 Load Data

Post by 500SWfan » 09 Jun 2013, 09:27

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

-------------------

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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(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).

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.

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grimmond
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Re: iFire's PS90 Load Data

Post by grimmond » 09 Jun 2013, 12:38

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

Post by kmiles » 30 Jan 2016, 14:27

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

Post by panzermk2 » 30 Jan 2016, 14:58

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?
Done.
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Re: iFire's PS90 Load Data

Post by NLVMike » 02 May 2016, 19:51

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

Post by roostercogburn » 04 Sep 2016, 06:05

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

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Re: iFire's PS90 Load Data

Post by panzermk2 » 06 Sep 2016, 12:11

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.
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Re: iFire's PS90 Load Data

Post by roostercogburn » 07 Sep 2016, 04:35

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

Post by panzermk2 » 07 Sep 2016, 13:53

Maybe the browser, try this link.

http://www.eliteammunition.com/#!/Elite ... y=18984037" onclick="window.open(this.href);return false;
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Re: iFire's PS90 Load Data

Post by roostercogburn » 17 Sep 2016, 06:17

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

Post by panzermk2 » 19 Sep 2016, 10:22

The case is a combustion chamber. Smaller chamber means higher pressures with the same amount of powder when compared to a larger chamber.
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