I went with my son and brother-in-law last December on a hog huntfor the first time. My son used my .270 with a managed recoil 115 gr bullet, my brother-in-law used a .308, and I used my 7mm with a 150 grain bullet.We each got hogs, 135, 185 and225 lbs.with that ordinance, and none of them wandered off. But my impression from how they went down (one shot in the middle of the neck just in front of the shoulder, a half a minute of twiching and done) was that a much less powerful round, properly placed, would have done just as well. Next time I will probably take my 30-30.