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Anyone shoot 32 gr Blitzkings in 1-9 twist?

Posted: Fri Oct 31, 2014 9:06 pm
by TEXAS222
Just wondering if 32 gr BK's will hold up in a 1-9 twist 24" barrel. I shoot 39's fine but never tried anything lighter. Trying to find out before blowing more money & time. I have plenty of 8208, benchmark, 322, H4895, RL7, & varget. If the 32's work, which powder would you choose to start with? Appreciate the help. JD

Re: Anyone shoot 32 gr Blitzkings in 1-9 twist?

Posted: Sat Nov 01, 2014 9:26 am
by Darkker
Do the math yourself.
MV * 720 / Twist = RPM
Your barrel smoothness dependant, Sierra BK bullets have an RPM ceiling of approx. 352,000 rpm

Re: Anyone shoot 32 gr Blitzkings in 1-9 twist?

Posted: Sun Nov 02, 2014 9:41 pm
by Tokimini
I tried them in my 9 twist Shilen barrel. The pic shows a very common result.

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Re: Anyone shoot 32 gr Blitzkings in 1-9 twist?

Posted: Mon Nov 03, 2014 7:38 am
by rbp75503
AR barreled Shilen 24" 1-9"

Have also had good precision with 26gr Barnes HP.


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Re: Anyone shoot 32 gr Blitzkings in 1-9 twist?

Posted: Tue Nov 04, 2014 9:31 pm
by TEXAS222
Thanks guys & keep up the great comments. JD

Re: Anyone shoot 32 gr Blitzkings in 1-9 twist?

Posted: Mon Mar 16, 2015 6:20 pm
by surefire
rbp75503: Could you publish your load data, OAL and anything else on your loads. I'm trying to get my load correct for both the 39 and 32 SBKs using RL10X and BR4 primers. I think I'm having problems with not getting the cases resized to factory specs since my OAL is good as far as being right on for fitting in my AR-15 magazines.