250 AI, new powders

[cmh259]

I ran H414 and H4350 in my old 23" .250AI w. a 115 HVLD @ 3050fps w. Winchester brass and CCI BR2.

What twist are you sing for the 115 HVLD?

 

[lancetkenyon]

What twist are you sing for the 115 HVLD?

It was the standard 1:10" long before any heavy .257s were available.