I used T/C 250 gr. Shock Waves which I think are made by Hornady. I shoot an Omega with 100 gr. of Trip 7. I shot a doe, took out both lungs , bullet passed through. Shot a 185 lb. 8 pt. buck. It was a quatering away shot and I hit him a little to far back. The bullet went through the paunch,one lung ,and the off side shoulder, ending up under the hide in a perfect mushroom.