iFire's PS90\FsN Crossover Data

iFire · Post by **iFire** » 29 May 2011, 14:30

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35 Grain Hornady NTX + Hodgdon HS6

35 Gr NTX
HS6
6.2 Grs

FsN FPS - 1875
Sample Size 2
Stand. Dev. 23
Ft Lbs Energy 273
-------------------
PS90 FPS - 2349
Sample Size 2
Stand. Dev. 3
Ft Lbs Energy 429

Notes FsN: Standard Function -

Notes PS90: Standard Function -

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

35 Gr NTX
HS6
6.4 Grs

FsN FPS - 1945
Sample Size 2
Stand. Dev. 22
Ft Lbs Energy 294
-------------------
PS90 FPS - 2407
Sample Size 2
Stand. Dev. 6
Ft Lbs Energy 450

Notes FsN: Standard Function -

Notes PS90: Standard Function -

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

35 Gr NTX
HS6
6.6 Grs

FsN FPS - 2035
Sample Size 1
Stand. Dev. #DIV/0!
Ft Lbs Energy 322
-------------------
PS90 FPS - 2510
Sample Size 1
Stand. Dev. #DIV/0!
Ft Lbs Energy 490

Notes FsN: Standard Function - Approaching the max of around 6.8 grs - use caution

Notes PS90: Standard Function - Approaching the max of around 6.8 grs - use caution

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35 Grain Hornady NTX + Hodgdon Longshot

35 Gr NTX
Longsot
5.7 Grs

FsN FPS - 1952
Sample Size 2
Stand. Dev. 28
Ft Lbs Energy 296
-------------------
PS90 FPS - 2400
Sample Size 2
Stand. Dev. 9
Ft Lbs Energy 448

Notes FsN: Standard Function -

Notes PS90: Standard Function -

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

35 Gr NTX
Longsot
5.9 Grs

FsN FPS - 2054
Sample Size 1
Stand. Dev. #DIV/0!
Ft Lbs Energy 328
-------------------
PS90 FPS - 2446
Sample Size 1
Stand. Dev. #DIV/0!
Ft Lbs Energy 465

Notes FsN: Standard Function - Solid full power load - be careful as this is approaching max levels

Notes PS90: Standard Function - Solid full power load - be careful as this is approaching max levels

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40 Grain Hornady Vmax + Ramshot True Blue

40 Gr Vmax
True Blue
5.7 Grs

FsN FPS - 1783
Sample Size 2
Stand. Dev. 4
Ft Lbs Energy 282
-------------------
PS90 FPS - 2254
Sample Size 20
Stand. Dev. 12
Ft Lbs Energy 451

Notes FsN: Standard Function - The FsN pistol does very well with True Blue

Notes PS90: Standard Function - anything above 5.7 has the potential to cause mag pops and/or jams…

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40 Grain Hornady Vmax + Hodgdon HS6

40 Gr Vmax
HS6
6.0 Grs

FsN FPS - 1789
Sample Size 5
Stand. Dev. 35
Ft Lbs Energy 284
-------------------
PS90 FPS - 2232
Sample Size 9
Stand. Dev. 15
Ft Lbs Energy 443

Notes FsN: Standard Deviation was pretty high - Maybe restest at some point…

Notes PS90: Standard Function - low SD

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40 Grain Hornady Vmax + Hodgdon Longshot

40 Gr Vmax
Longshot
5.5 Grs

FsN FPS - 1878
Sample Size 4
Stand. Dev. 13
Ft Lbs Energy 313
-------------------
PS90 FPS - 2309
Sample Size 15
Stand. Dev. 17
Ft Lbs Energy 473

Notes FsN: SD was low, good function

Notes PS90: Standard Function - low SD - good load

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

iFire · Post by **iFire** » 29 May 2011, 14:30

* Placeholder *

ddouglas · Post by **ddouglas** » 29 May 2011, 14:51

iFire...

shooter · Post by **shooter** » 29 May 2011, 17:29

After lurking for a while and loading a few 5.7's I finally decided to join to say 'Thanks' for the Longshot data. I have about 7 lbs of the stuff.

/Dave

eVenom · Post by **eVenom** » 10 Jun 2011, 22:30

Great Job on all the research
I do have one question...

why is the max diferent in the PS90 and FsN? I do understand a problem with the gun jamming or something but why will the primers leak and diferent levels?

PS90
27 Gr SS195 Pull
AutoComp
6.2 Grs *Max?*

FPS - 2807

Sample Size 1
Stand. Dev. #DIV/0!
Ft Lbs Energy 473

Notes: Primer starting to show leakage around edges - I stopped and shot the remaining rounds of my ladder through the pistol -

and then

FsN
27 Gr SS195
AutoComp
6.4 *Caution*

FPS - 2454

Sample Size 1
Stand. Dev. #DIV/0!
Ft Lbs Energy 361

Notes: *no real gain in velocity from 6.3 - which means its at or above the max…

That is a .3 diff to start getting the leakage.?!?!?!

another thing this information will be great to have on a spreadsheet I started working on it but thought I ask if it already exist.

iFire · Post by **iFire** » 11 Jun 2011, 05:09

eVenom wrote:Great Job on all the research
I do have one question...

why is the max diferent in the PS90 and FsN? I do understand a problem with the gun jamming or something but why will the primers leak and diferent levels?

Several Reasons really...

First, the FsN's short barrel doesn't always allow for a complete burn of the powder before the bullet exits the barrel. Thats why some loads in the FsN create the "fireball" at the end of the muzzle during each shot... The PS90 however, with its ~3x longer barrel will more efficiently use the powder and wont burn it (or as much of it) out the end of the barrel.

Second, both firearms are not exactly equal... The PS90 bolt and the FsN slide have different styles of springs (PS90 - two long weaker springs, FsN- one short stiff spring) that react slightly different to the same load.

So, without going into the issue any further, the two examples above are reasons enough that the max would be different...

Also, the top feed mag on the PS90 throws another wrench into the equation, not seen in the threshold of the brass, but in the threshold of the entire system working properly

eVenom wrote:another thing this information will be great to have on a spreadsheet I started working on it but thought I ask if it already exist.

I have a excel spreadsheet a mile long with 5.7 data... Some of which has never been posted...

But I do use excel to make all of my data posts here on the forum - all of the HTML code is in excel so all i have to do is just cut and paste... otherwise the work i did to post with formatting would have taken years :laugh:

shooter · Post by **shooter** » 13 Jun 2011, 07:57

iFire,

I didn't see any col's in your data. Are you using anything special, or just close to the max?

Thanks,
/Dave

iFire · Post by **iFire** » 13 Jun 2011, 12:38

shooter wrote:iFire,

I didn't see any col's in your data. Are you using anything special, or just close to the max?

Thanks,
/Dave

When I re-formatted all of my data, the top header was lost - I have added all the headers back into my load threads. Should be GTG :thumb:

shooter · Post by **shooter** » 14 Jun 2011, 10:30

I see them now, thanks. 1.575 is about where I was starting with my reduced loads. Good to know that I was in the ball park...

iFire · Post by **iFire** » 27 Jun 2011, 14:20

35 grain Horndady NTX data added...

bremerd1 · Post by **bremerd1** » 22 Jul 2012, 17:45

Hello All,

Longtime reader, first-time poster!

I have both a PS90 and a FN5.7, and have begun reloading the 5.7x28 for use in the PS90.
I did quite a bit of research, and settled on the data here... (More info on this board and in iFire's threads than anywhere else!)
I got the first 'test batch' (50 rounds) of ammo finished (based on data from this thread), and went to the range today with the PS90.

Load:
-Once fired brass from both the FN 5.7 and PS90.
-40 Grain Hornady Vmax + Hodgdon HS6, CCI 400 small rifle primers.
-FN PS90

Sorry folks, but I don't own a chrono, so I can't give you any speeds. Just some seat-of-the-pants observation.

I tried a range of powder (10 rounds each powder load) as follows:
-10 rounds factory SS197 (to get a baseline 'feel').
Note: All the loads cycled the action fine, and did not pop the magazine up, or show any other undesireable activity on the rifle.
-10 rounds @ 5.8 grains: 'Feels' much faster than the factory. The SS197 fires with a longish 'boooom', the HS6 fires with a much shorter 'bang'.
-10 rounds @ 5.9 grains: Not much difference from the 5.8 grain load.
-10 rounds @ 6.0 grains: Slighly more muzzle jump than the 5.8 or 5.9 loads.
-10 rounds @ 6.1 grains: Noticeably more muzzle jump than the 6.0 load (made the gun take slightly longer to get back on target)
-10 rounds @ 6.2 grains: Felt much the same as the 6.1 load.

I have never reloaded ammunition before this, but I **think** the 6.1 and 6.2 grain loads were 'leaking' around the primers. There was ever-so-slight signs of 'black stuff' around the primer pockets. I didn't see this in the loads with less powder, and I have settled on 5.9 grains as what I intend to use on a regular basis. (I have a couple of thousand cases I've been collecting since I bought the rifle two years ago.).

The rifle is used for putting holes in paper and 'plinking', so I'm not so concerned with the 'performance' or the round - just that it cycles the action every time, and shows repeatable performance.

I really appreciate the folks that have posted data here (and their observations), and felt compelled to post what my results were, in the hopes that in the future, someone may find it useful.

Many Thanks,

Dan

Post by **Rapier1772** » 22 Jul 2012, 18:00

My factory ammo stock pile is getting rather depleted & I'm about to start reloading for both (been doing it for the FsN only up 'til now). Glad you had good luck with the loads, this is where I get my reloading info too :laugh:

bremerd1 · Post by **bremerd1** » 05 Nov 2012, 13:52

So I thought I'd post a 'few months later' followup.

I've loaded several thousand rounds of this at both 5.9 and 5.8 grains of HS6 and 40gn Hornady 'Zmax' (The green tipped Vmax) bullets.

I've shot several hundred of these from the PS 90 with only one or two magazine pops (always/only on the first round), and one or two failures to feed (the polymer tip gets 'munched' on something, and the bullet does not chamber correctly). All in all I'm quite happy.

I ended up with a couple of purchases of once fired brass (to the tune of some several thousand cases), so I'll be set on reloading for a long long time...

Dan B

Post by **Rapier1772** » 08 Jun 2014, 22:33

I just loaded up some crossover test rounds but for some reason, my Chrony decided to mostly give errors on these batches so I have very little speed data, the only set that has any is the True Blue out of FsN. Chrony was 12ft from muzzle.
40gr V-Max
WSR Primers
Trimmed: 1.135"
COAL 1.58"
5.5gr True Blue:
Avg 1890fps, 7.3fps St Dev FsN only. PS90, sharp recoil but good function.
6.5gr Blue Dot:
FsN standard function. PS90, magazine pop on first shot & spontaneous disassembly of 'feeder rotating mechanism' (repairable).

iFire has 6.7gr as max for Blue Dot in the PS90 data thread, but clearly it is too high (for mine). Next time, I will try 6.0gr-6.2gr.

bruteandbear1 · Post by **bruteandbear1** » 09 Jun 2014, 07:18

Who tried the autocomp with the 27 grain bullet In The FSN? They got impressive velocities 2454 is damn fast. I Must try this load at 6.2 to 6.3 grains against my vest. So who has tried this load with Autocomp?

Post by **Rapier1772** » 09 Jun 2014, 16:05

Based on the format of the post, I would say that was one of iFire's & then he edited it out of original post.

Unfortunately, he hasn't been back for almost 2 years

Post by **Rapier1772** » 10 Jun 2014, 16:45

After Sunday's fiasco, I reloaded some more rounds for another try. This time I got data. :clap:

The Failure To Eject was likely due to the brass catcher bag being scrunched under a bit & not allowing the spent shells to fall clear.

Consistency wise:
True Blue: ok in pistol, bad in PS90
Blue Dot: Good in PS90, bad in pistol.
Brass & primers were fine with both loads.

500SWfan · Post by **500SWfan** » 11 Jun 2014, 04:01

Rapier1772 wrote:After Sunday's fiasco, I reloaded some more rounds for another try. This time I got data. :clap:

The Failure To Eject was likely due to the brass catcher bag being scrunched under a bit & not allowing the spent shells to fall clear.

Consistency wise:
True Blue: ok in pistol, bad in PS90
Blue Dot: Good in PS90, bad in pistol.
Brass & primers were fine with both loads.

That reminds me of the question I raised in iFire's PS90 thread (http://www.fivesevenforum.com/viewtopic ... 45#p218345" onclick="window.open(this.href);return false;). Isn't 5.6g of True Blue the MAXIMUM load when using the longer 40g V-Max, and would that explain the mag pop and poor consistency in the PS90?

Post by **Rapier1772** » 11 Jun 2014, 09:11

500SWfan wrote:That reminds me of the question I raised in iFire's PS90 thread (http://www.fivesevenforum.com/viewtopic ... 45#p218345" onclick="window.open(this.href);return false;). Isn't 5.6g of True Blue the MAXIMUM load when using the longer 40g V-Max, and would that explain the mag pop and poor consistency in the PS90?

The longer V-Max as opposed to what?
I tried to get data with the 5.5gr of TB but my Chrony was being a pain & all I got were errors. They all functioned fine, no mag pops, and so that's what I was going to use as my standard load.
However, I'd bet it will still be inconsistent in the PS90, it's one of those times I'd be happy to be wrong.

500SWfan · Post by **500SWfan** » 11 Jun 2014, 09:31

Rapier1772 wrote:
500SWfan wrote:That reminds me of the question I raised in iFire's PS90 thread (http://www.fivesevenforum.com/viewtopic ... 45#p218345" onclick="window.open(this.href);return false;). Isn't 5.6g of True Blue the MAXIMUM load when using the longer 40g V-Max, and would that explain the mag pop and poor consistency in the PS90?
The longer V-Max as opposed to what?
I tried to get data with the 5.5gr of TB but my Chrony was being a pain & all I got were errors. They all functioned fine, no mag pops, and so that's what I was going to use as my standard load.
However, I'd bet it will still be inconsistent in the PS90, it's one of those times I'd be happy to be wrong.

As opposed to the Sierra 40g. In the Ramshot load data, they list the range for the Sierra 40g as 5.6g to 6.3g True Blue, but for the Hornady V-Max, they list it as 5.0g to 5.6g True Blue (the older manual actually separates them out as shorter bullets vs longer bullets, but they don't make that specific distinction in the latest, see link below)

http://www.ramshot.com/wp-content/uploa ... -23-14.pdf" onclick="window.open(this.href);return false;

FiveseveNForum.com

iFire's PS90\FsN Crossover Data

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