powder suggestions

[screech]

Hey guy's, Finally broke down and am having a 338-378 with a 35 degree shoulder built. What kinda powder would you suggest? Thanks guy's.

 

[Black Diamond 408]

Try Retumbo with the 300 sierra MK.

Dave

 

[wildcat]

Screech, tell us more about your rifle, Action, Stock, Barrel, trigger, ect. Also, great choice on caliber. The 338-378 Improved is an awesome round. I am having a 338 Lupa Magnum Improved built and it should be completed soon, I can't wait to shoot this big beast. Please, tell us more about your new rifle.

Wildcat

 

[screech]

It's a remington pss that's going to be trued and blue printed. It will be single shot. trigger tuned to I'm hoping 2lbs. if it cant then it will probably get a rifle basics trigger. 1-10 twist 30" Hart barrel in a #7 lilja contour. I dont know what countour hart consideres it. Night force rings and bases. skim bedded. 5.5-22x56 NXS.