I was just running some recoil calculations on a 10# 338-378 KT project (similar to Elmer Keith's elk rifle)...250 gr bullet at 3k fps...right at 50 ft lbs of recoil for a top end load, which is more than a 340 Wby. Playing with different reloads you can get it down around 40 lbs of recoil and that's not bad.