The first porcupine I shot with TNT's in my 270 Win blew chunks 20 feet in the air... I was impressed, but I stopped using them after a few blow ups on coyotes that didn't end up with a dog on the ground. I think they might have been "splashing" and not penetrating far enough. TNT's come with a suggested velocity limit and they are thin skinned enough that you really need to keep the speed down to their suggested limit.
Last edited by bpolege; 06/11/09.
