i am sorry i told ya'll wrong,my 300gr bullet an't a xtp it's a SPEER .451'' 300 gr plated sp. When you said that about the bullet opening up it came to me no this bullet does not deform much and it almost made it through this hog it was in the bacon on the far side. this hog weighed #310 .Sorry i called it a xtp. i got to many loose bullets laying around in my head.