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mk23
06-13-2006, 05:16 PM
I did some of the MO193 recipy 3n37 loads this weekend, using 3.2gr with a 55gr bullet. They were all subsonic and cycled the ps90 and fn5-7 great.

But the spread on them was bigger than the factory stuff even at 25yds. I am not new to reloading, been doing it for a while on my 550b. The powder was consistent, and OAL was consistent as well. Anymore than 3.2 gr and some of them were going trans-sonic.

Any suggestions? Any experiance?

Dend78
06-13-2006, 09:45 PM
did u use chrono at all? my only guess is try HS6 it burns faster or go the other direction and try AA #9, other than that im not sure

mk23
06-13-2006, 11:29 PM
did u use chrono at all? my only guess is try HS6 it burns faster or go the other direction and try AA #9, other than that im not sure


No, I just shot them suppressed. Yeah, I know. I need to buy a chrono.

Dend78
06-14-2006, 08:20 AM
what kind of bullet were you using? what kind of spread were you getting on them?

mk23
06-16-2006, 12:40 AM
what kind of bullet were you using? what kind of spread were you getting on them?

Sierra Gamking 55gr FMJBT. At 25yds I usuallu shoot less than 1 inch off hand with the factory loads. These were about 2 1/2 inches.

BTW, I ordred a chrony from Midway, so we'll see

Dend78
06-16-2006, 09:11 AM
hmm thats odd that it would be jumping around that much, one would think that at a slower speed like that it would be a little more stable, also have you tried it without the can on it, i wouldnt think it would make that big of a difference but they may be kickin out of the can a little weird, but im not sure i havent messed with a suppressor to know enough about em

cherokee ed
06-17-2006, 10:58 AM
you might check my post on the 55 gr load sticky.

Medula Oblongata
06-17-2006, 08:04 PM
1" at 75' is utterly PHENOMENAL offhand... In fact, having attempted to gain a berth on the US Olympic shooting team (Failed, came in 46th out of 500 shooting) I can say that anyone who can shoot 1" groups without sandbags or a machine rest should try for a spot on the team, you WILL succeed. My best shots at 75' offhand (with NO support of any kind) average about 2 1/2" with my KH USP Elite target 45, and 3" with my Five-seveN... Under ideal range conditions and humidity.

As far as subsonics go, you will notice a difference in accuracy as the twist rate was designed for something going much faster. I gave up on using Sierra GameKing and went to 55grn FMJBT. The uniformed tips yield greater accuracy than the spitzer points. I noticed the GameKings would deform under reciol in the magazine and the spread would become greater towards the end of the magazine. The reason FN uses the spitzer is for greater expansion, which is especially important at low velocity. I have no need for expansion when Im punching paper, so I shoot the FMJBT. When I do use the spitzer pointed bullets, I try to load only 5rds in the mag at a time, and I only use them for vermin abatement at close range. They are pretty much worthless for anything else.

Good luck on your reloading project!!!

jmz5
06-17-2006, 08:09 PM
that is pretty impressive

mk23
06-19-2006, 02:28 PM
1" at 75' is utterly PHENOMENAL offhand... In fact, having attempted to gain a berth on the US Olympic shooting team (Failed, came in 46th out of 500 shooting) I can say that anyone who can shoot 1" groups without sandbags or a machine rest should try for a spot on the team, you WILL succeed. My best shots at 75' offhand (with NO support of any kind) average about 2 1/2" with my KH USP Elite target 45, and 3" with my Five-seveN... Under ideal range conditions and humidity.

As far as subsonics go, you will notice a difference in accuracy as the twist rate was designed for something going much faster. I gave up on using Sierra GameKing and went to 55grn FMJBT. The uniformed tips yield greater accuracy than the spitzer points. I noticed the GameKings would deform under reciol in the magazine and the spread would become greater towards the end of the magazine. The reason FN uses the spitzer is for greater expansion, which is especially important at low velocity. I have no need for expansion when Im punching paper, so I shoot the FMJBT. When I do use the spitzer pointed bullets, I try to load only 5rds in the mag at a time, and I only use them for vermin abatement at close range. They are pretty much worthless for anything else.

Good luck on your reloading project!!!

Sorry, I don't know what I was thinking the day I wrote that. I meant to say 25 feet, not 25 yards. (long day, must have been tired)

Anyhow at 25 feet, I can usually do a raged whole with factory ammo, and it opens quite a bit with reloaded gamekings.

i did also buy 1000 FMJBT from Midway, and I was going to give those a try with my new chrono.

What kind of accuracy are you getting from the FMJBT?

Medula Oblongata
07-04-2006, 06:26 PM
At 25 feet I average about 1 1/2 with the 55 FMJBT, and cloverleafed hole with 40grn higher velocity ammo. Accuracy wise, its not the greatest round in the world, and I would NOT use the FiveseveN for a bullseye competetion (I use my Colt Python with 127grn wadcutters and 3.7grns BLue Dot for that :))

When I put my FiveseveN in a rest, the accuracy is a little better (about 3/4" at 25 feet) but still NOT precision. The 55grn stabilize the best at about 1400fps and are much better (3/4 - 1" at 25') accuracy wise. IN fact, every round I have reloaded was more accurate at higher velocity in this caliber... wonder why?