Just got back today from a hunt in the Texas hill country. Built an AR in 300-221 (AKA 300 whisper) for my daughter last year, she did not shoot it, and I have been using it ever since. Shot four deer with it last season. I shot two pigs and one sheep with it this trip. First pig was about 15 pounds. Nest shot the sheep at a little over 150 yards, heart shot, walked about 20 feet, was dead by the time I got to it. Yesterday evening shot a pig about 70 pounds. Aside from the sheep, everything has dropped where shot. It is very accurate, and needs to be with the low power cartridge. It is a pleasure to shoot. Have not had to use the semi auto part of the gun yet. I was hoping to get a second shot at another pig, but they ran faster than I could follow. One thing I would do different on the gun would be to put a better scope. I put on a Mueller, and yesterday evening found out how lousy the light gathering is on the scope. Had to pass up a shot at an axis because I could not see well enough.