Load Data for FN 5.7 x 28mm USG & IOM pistols.
***Not for P90 Machine gun !***
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*********Disclaimer***** Procede with caution!
Please always use caution and safety when reloading.
These loads below are for experienced reloaders.
I am not, nor any one I know responsable for your safety!
Safety First!! Thanks--
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This data is "NOT" to be considered absolute as it was not developed in a
pressure barrel, but in the actual hand gun.
This Data comes from a very experienced reloader.
Since there was no baseline data to start from, he said it took him
over 220 different loads to get this data.
He said he tried 17 different powders in his testing
and spent five months before he found the duplicate load.
He tried bullets from 30 gr to 62 grain.
And 5 different brands of primers.
Each load was a 20 round average,
unless it was very obvious that it was not even close to a good load.
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Factory duplicate load for SS192 round is:

7.0 grains of Accurate Number 9, Hornady V-Max 35 grain bullet,
CCI Small Pistol Magnum Primer.
This load yielded a 20 round average of 2420 FPS on a
CED Mellinium Chronograph with Infrared sensors @ 20 ft from muzzle.
Group accuracy of 4 inch circle at 100 YARDS, Shot from a bench rest.
It shot virtually a flat trajectory !

DO NOT LOAD THIS ROUND ANY MORE THAT 7.1 GR.
OR ANY LOWER THAN 6.9 GR.
More will crater the primer. Less will detonate with uncontrolable pressures.
Use of rifle primers will lead to misfires due to light firing pin energy
in this gun.
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Load for duplication of NEW SS196 SR round is:

6.6 grains of Accurate Number 9, 55 gr FMJBT Sierra Bullet,
CCI Small Pistol Magnum Primer.
This load yielded a 20 round average of 1450 FPS on a
CED Mellinium Chronograph with Infrared sensors @ 20 ft from muzzle.
Group accuracy of 7 inch circle at 100 YARDS, Shot from a bench rest.
It shot 3 inches low of bullseye ! It was One inch low at 50 Yards.

DO NOT LOAD THIS ROUND ANY MORE THAT 6.8 GR.
OR ANY LOWER THAN 6.5 GR. More will crater the primer.
Less will detonate with uncontrolable pressures.
Use of rifle primers will lead to misfires due to light firing pin energy
in this gun.
Please use extreme care when using this data.
Accuracy of this load with this powder can NOT be Stressed enough !
Accuracy with this powder is a MUST !
It will shoot beautifully when loaded properly !
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Did a test the 5.7 on a new second chance stage 4 vest,
wrapped around a 55 gallon plastic drum.
Fired 10 rounds each of, SS192, SS195LF,
and the above load for 35gr V-Max load from 50 feet, and all went thru the vest,
thru the barrel both sides, and thru the vest again !


Enjoy ! Now shooting the 5.7 is affordable again…

What about seating depth (C.O.L.)?

Group accuracy of 4 inch circle at 100 YARDS, Shot from a bench rest. .....ya Know from a service pistol thats just damn imppressive. One note..read the vest tag again ... a (stage??)Level 4 is hard ceramic armor and weighs 26-35 pounds
and stops most everything shot from a rifle short of .50BMG
the most common soft armor is still Level 2a(16 layers Kevlar), followed by the more capable Level 2 (22 layers Kevlar)
and then the IIIa(48 layers Kevlar)
I suspect by the description you give ..the vest was a 2a, or a 2......we would welcome pics of the vest(I have posted alot of vest test pics I took)

http://img39.echo.cx/img39/5740/2004-07-20010.jpg

Interesting,
When I loaded 7.0 grains of AA9, I only averaged 1750 fps. There is quite a bit of difference.

Guys
The man who tested + came up with the load data may respond to your questions thru me. He does not want to be known!
All I know is what I posted to help everyone here.
If I get the answers, they will be posted.
Thanks

Anonymous sources have zero credibility with me. 2400+ fps sounds like BS for that load; I think what 7of7 has found is more believable esp. since other sources have more or less corroborated his findings.

2420fps with a 35 gr bullet when a full combat SS190 28gr will only do 2136fps? and 2350 out of a P90.......that sounds like a typo or he really has a .224 BOZ lol

Wish I could find the components for a .224 BOZ...

it is a shame that we here in the states never got to play with that cartridge....the only major downside was that it tore up the guns that fired it......given time im sure a suitable vehicle could have been found even if it ment a special barrel/bolt/mag for a desert eagle...or a 1911 type like the LAR Grizzly.

This is what you asked me for:
Note: This is not my data I have not loaded yet!
Loading a 55 Gr. FMJBT the OL will be the same as a SS192 = 1.584"
Loading a 35 Gr Hornady V-Max round the overall length = 1.577". Since this bullet is considerably shorter.
Please look at 7 of 7 posts also. He has giving us good info
I am just releying info trying to help.
Make you own choices + be safe!

I remember reading about the .224 BOZ some years ago. The article was somewhat vague regarding the ballistics and capibility because of security concerns, I do remember being very impressed.

In the freest counrty on earth, WE cannot own a simple cartridge??

It makes me wonder exactly what they are SO scared of,,and more importantly , WHY?

Loading a 35 Gr Hornady V-Max round the overall length = 1.577". Since this bullet is considerably shorter.
Please look at 7 of 7 posts also. He has giving us good info
I am just releying info trying to help.
Make you own choices + be safe!

1.577 - 1.1275 = 0.4495 (The amount of bullet protruding from the case.)
.5175 - 0.4495 = 0.0680 (Seating Depth!!!!)

I am surprised the bullet doesn't get dislodged in the chambering process,... as violent as it is.


Harley,
I do appreciate the additional information. Thanks for getting us the answers to our questions. Did he mention case trim length?

7 of 7
Here is what is he had to say when I asked him what length he cut his cases to:
'I have never had a case problem, so I have never cut the cases what so ever. I have never had a feed jam and some cases have been reloaded over 12 times already and no feed problems.'
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7 of 7 - Does this seem correct? Since I an new to reloading this round I can not see reloading 12 times with out trimming.
I do know after I clean, deprime, and size the calibers I load, I check the case length and trim if needed. At this time I am also checking for cracked cases.
thanks,
Harley

Harley,
Thanks for getting a quick answer from him!!! It is nice to know that he has reloaded some of them 12 times!!!


The factory bullets are seated 0.370" , or aproximately 45% of the length of the bullet. The last .10" is tapered. If you were to duplicate that seating with the 35 grain V-Max, you'd have a round that is 1.2745" which, imo, is to short. However, seating .068 probably isn't enough, imo.
If we use the percentage of the bullet, 45%, it would mean we would seat it .232" and have a OAL of 1.4125.
By not seating the bullet deep enough, you will be effecting the pressure that the cartridge builds up as it fires. I will ask some questions of the ballistician that I worked with.

As far as case trimming. I have noted that some of the twice fired cases were at a length of 1.141. The length of the cases from the ammo I took apart averaged 1.1275. An increase of 0.0135" .

It is my preference to bring the cases back as close to factory length as possible. That way you can avoid problems. There is, I am sure, a maximum case length, however FN isn't saying much about reloading the 5.7, and probably won't.

The tolerance on the 30-30, the 30.06 is 0.01 max case length/trim to length, in looking through the Speer reloading manual, most all cases have that tolerance, so one could go with that as a precedence.