NoMercy I took a fired case and inserted a bullet right from the box and it was a no go for chambering. I then ran a bullet through a .356" sizing die and put it in a fired case and it chambered no problem. I believe these 180 gr XTPs will be devastating on deer and blackies.
But right now they are a back up as I got a couple deals on 350 Legend ammo and have 6 boxes of 145 gr Winchesters and 6 more of 180 gr Federals. I can go through those 145s pretty quickly with my AR platform! I wish PA would legalize semi autos for big game.