Remington 700's in a good stock, bedded, barrel freefloated, trigger tuned will shoot sub 1/2" groups as a rule of thumb.

140g Partition- ballistic tip, accubond at 3250 on 26" bbl

150g-154g- R#25 with WINchester Magnum primer, 3200 fps, tiny groups, less than 10 fps extreme spread

160g-168G-IMR 4350(3000 fps), IMR 4831(2950),RETUMBO(3100 fps), H1000(3000 fps)

175-180g- R#26(3030 fps with Fed 215)

The Gentry muzzle break reduces the recoil to a 243, and it also throws most of the concussion FORWARD!