bullet speeds

billsr25

New member
Just wondering what velocities you guys are getting out of your AR-15s with .223 55gr. loads. I'm running around 3100fps with RL10x 23grs. and ARcomp 24.5grs.
 
Sounds about right for a 18 inch or so barrel. If it's shorter then you are doing quite well. You are still under max on the AR Comp so if you want more it's there to be had.
 
I have a 24" ss fluted bull barrel. Only getting around 3100fps with both powders. I could bump up the ARcomp but I'm not getting the best of groups with it so I want to stick with RL10x.
 
Originally Posted By: venaticFrom my 22 inch barrel I get 3350+ or - ..with a few powders...N133,N530,CFE223,XTerminator FWIW
My hunting buddy has some Xterminator I can try. I know his mini 14 target is getting 3300fps with the same loads I use but he put on an adjustable gas block and made several adjustments to reduce his brass ejection. My other buddies m&p Ar-15 with an 18" barrel was only hitting 2815fps with some loads he had done up, which suprised him as he thought they would be faster. I don't know what he was loading as we were all shooting over the chrony with the loads we had done up.
 
Originally Posted By: billsr25Just wondering what velocities you guys are getting out of your AR-15s with .223 55gr. loads. I'm running around 3100fps with RL10x 23grs. and ARcomp 24.5grs.



That is close to my 24" AR. I am getting 3143fps AV with 55's and 23.0gr 10x.

So I switched to 53gr V-Max's and 8208xbr at 3450fps. Not as accurate as 10x, but still well under an inch at 100yds.
 
3120fps with 55gr. V-Max out of a 20" RRAPP, 25.5gr. charge of H4895 with CCI BR4 primer, about a .700" group at 100 yards. Good enough for me.
 
So it sounds like most of us are averaging around 3100fps + or -. A good friend has a Nikon m-223 scope he's offering me and to use the bdc a guy needs 3240fps.
 
I'm getting 3120fps out of 25 gr of benchmark, wsr primers, 55 gr nosler ballistic tips, loaded to 2.29" col. They shoot 9 out of 10 in a quarter at 100 yds. I'm shooting a Thompson Center venture predator. I know it's not an at but a good load none the less
 
Originally Posted By: venaticI chrono'ed my 52gr Berger 28.5 gr of CFE223 load today at 3529fps average(26 Inch barrel)



Are you getting these speeds with a Bolt action?
 
Originally Posted By: billsr25Originally Posted By: venaticI chrono'ed my 52gr Berger 28.5 gr of CFE223 load today at 3529fps average(26 Inch barrel)



Are you getting these speeds with a Bolt action?

Yes that particular gun was a bolt action.
 
You can still use the m-223, there just giving a general idea with there bullet/velocity combo for example. There is a lot of homework involved with using a bdc reticle to utilize it the way they suggest. There are so many factors involved beyond just bullet weight and velocity and they explain this in the manual with the scope.
 
I finally got my 55SBK loads to read over the chrony, I read an average of 3030fps and 3050 with 55 z max, both with 25gr ar comp. tried the zmax with benchmark and I read an average of about 3050 with 25.5gr charge.

All are from a 20in 8 twist
 
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