I know this isn't long range for a lot of you but with a .223 its pretty good. I have been testing the 90 SMK for awhile now and it has shot extremely well out to 300 yards. I have also shot phone books and the SMK have penetrated very well. Now after all this I decided to try them on some whitetail and tonight I got a chance. I had a few doe and a small buck all about 100 yards away, but I waited on a longer shot. Finally 2 doe came out at 300 yards. One was big doe and the other was med. I shot the big one first at about 250 yards right in the shoulder. It jumped up about 3 feet and cut flips to the edge of the field about 30 yards and fell dead. The other doe ran back to the the woods at 300 yards and stopped. I put another SMK in the chamber and fired right at the shoulder and it cut a flip and fell about 20 yards from point of impact. Both deer were hit in the shoulders and the bullets penetrated out the off side shoulders with a quarter size exit hole on both! The 90 SMK performance was outstanding. I have shot a good many deer with the .223 wssm and 53 gr. TSX but I might have found a better long range bullet in the 90 SMK! The SMK is leaving the barrel at 3050 and the 53 TSX are at 4200.