20GT

[Coyote777]

Well I have started on another wildcat adventure for this next fall/winter varmit season. Always wanted a fast as fuck 20cal so here we are! Like the GT family so figured it would work well. Sending a round off to JGS for the reamer and buying bits and pieces for now. Build components listed below. Overall I’m hoping for 3800-3900fps out of the 20” with great accuracy of course. The Berger 55gr is an impressive little bullet on paper. I’ll keep yall updated once load development starts.

-Kelby Atlas Action
-Muller 1-8t M24 Barrel
-Trigger tech Diamond
-KRG Whiskey 3 Chassis

 

[bodhisafa]

What are your thoughts on it possibly having too much case capacity to push the Berger at those speeds?

 

[Coyote777]

What are your thoughts on it possibly having too much case capacity to push the Berger at those speeds?

Well I’m not the first to do this. The 55gr bergers will handle that speed. Just finding the powder that it likes. Plan on trying Varget, H4350, RL15.5 and N555.