Hello. I have shot it in 9mm and .45 ACP in 124 and 230 grains, respectively. The ammunition grouped well, was reliable and expanded nicely in animals. I'm told by Hornady that the 9mm load uses a standard XTP bullet but that in forty-five, there was some minute change made to the bullet. I don't remember the bullet weight, but a friend shot a hundred-pound feral hog with his .223 using Tap ammunition. I was surprised to see complete penetration on his broadside hit.