Anyone shoot 32 gr Blitzkings in 1-9 twist?

TEXAS222 · Post by **TEXAS222** » Fri Oct 31, 2014 9:06 pm

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

Darkker · Post by **Darkker** » Sat Nov 01, 2014 9:26 am

Do the math yourself.
MV * 720 / Twist = RPM
Your barrel smoothness dependant, Sierra BK bullets have an RPM ceiling of approx. 352,000 rpm

Tokimini · Post by **Tokimini** » Sun Nov 02, 2014 9:41 pm

I tried them in my 9 twist Shilen barrel. The pic shows a very common result.

rbp75503 · Post by **rbp75503** » Mon Nov 03, 2014 7:38 am

AR barreled Shilen 24" 1-9"

Have also had good precision with 26gr Barnes HP.

TEXAS222 · Post by **TEXAS222** » Tue Nov 04, 2014 9:31 pm

Thanks guys & keep up the great comments. JD

surefire · Post by **surefire** » Mon Mar 16, 2015 6:20 pm

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.

Anyone shoot 32 gr Blitzkings in 1-9 twist?

Anyone shoot 32 gr Blitzkings in 1-9 twist?

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

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

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

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

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