Re: Powder selection for RUMS
I agree with Kirby. RL22 works great in the 338 ultra mag and produces top velocities and usually top accuracy as well. Nosler number 5 shows faster velos with RL25 and the 225 grain bullets but I have yet to see RL25 shoot faster than RL22.
You could also burn RL22 in a 7 ultra in a pinch but your loading densities would be on the low side.
If it's not far, it's boring.