Furprick,
Because you're "only" trying to reach 2700 fps in your 22" barrel, you might also consider some faster powders such as IMR 4064, Reloader 15 or even IMR 4895. These powders should be able to get the TSX close to (or over) 2,700 with a little less noise and recoil than the slower powders (and get great accuracy as well). E.G. Barnes lists 47.5 grains of 4064 for the X (not TSX)@ 2720, I've not used that particular load but have had good accuracy with 4064. I do have a pressure tested load of 50.0 gr. RL15, 180 TSX, 3.395 OAL, Federal Brass, WLR primer, 22" barrel at 55K psi and 2677fps. Another 0.5 grain of of RL15 would probably hit 2700 fps and still be under 60K
