I just recently picked up a 270 WSM and would like to work up a load with ballistic tips. I'm looking at going with either the 140 or 150 grain offering. The 140 grain weight class seems to be much more popular in this bullet diameter but my concern is the velocity with this cartridge/bullet combo. I'm not opposed to 150s if slowing them down a bit is necessary, but is it necessary? Would a 140 be reliable at 270 WSM velocities? I live and hunt in WY so many shots are likely to be longer than a typical eastern hunting landscape.