I shoot a 270 as well and I have had one time when the cone of a bullet was deformed. It was either from me dropping the box or it came out of the mag wrong one time and deformed on the feed ramp. Either way I noticed it as I put it in my gun and being in a hurry ejected the round and stuck it right back in the box, dumb move I know. I shot at a doe later that season at 60 yards and missed about 3ft low. As I was walking back to my truck I remembered that round and checked the box of ammo and low and behold it was gone.