7.5 twist rate 243 Win

[lobo56]

Correction noted & applied there is a Berger 115 grain 6 mm bullet.
Sg stuff for that bullet:

View attachment 457547

Thanks for looking

Stupid question, but I am having a brain fart! Sg??
Is that a program that is available somewhere or did you make it? Nice.

 

[LBEdgin]

Thanks for all the good input everyone.

 

[QuietTexan]

Stupid question, but I am having a brain fart! Sg??
Is that a program that is available somewhere or did you make it? Nice.

Twist Rate Stability Calculator

Our newly updated Twist Rate Stability Calculator not only tells you what your SG is, but it also lets you know if you are reaching your optimized BC.

bergerbullets.com

 

[ARlife4me]

The 112gr is a Barnes bullet in 6mm. I have an AR with 8 twist (not a custom) 22". The positive note is mag acceptable length of 2.830". Let's me saet longer than usual per cartridge. QL gets me 2,900fps+ with 112gr. I think I can get over 3k, but need to check. Barnes data has it longer than 2.830, but at mag length there's little difference in velocity.