Re: Which bullet for 300 RUM
93.0 of H50BMG under 208 grain AMAX's has been a sweet spot in 2 different 300RUMs of mine. There is plenty of room for the powder and bullet. Even if it needs to be seated deep.
Velocity for my old barrel was 2900 and my current one is 2855. Not blazing fast by any means but accurate as heck and the numbers out to and somewhat past 1000 yards are incredible.
Long range shooting is a process that ends with a result. Once you start to focus on the result (how bad your last shot was, how big the group is going to be, what your buck will score, what your match score is, what place you are in...) then you loose the capacity to focus on the process.