The Berger 7mm 195 needs 1:8" twist. 1:9.5" will stablize the 168, the 180 will be marginal.
The MRC is a good value at the price point. My 308 MRC X2 with handloads has made cold bore hits on targets to 1,100 yards. The X2 is well suited and quite capable for hunting to 500 or 600 yards and shooting long range for fun. They are easy to shoot well, have been easy to maintain and trouble free. Keep it mind it is a relatively light hunting rifle. Longer range target shooting is a different game and benefits from tools tailored to the job.
