Growing up, I used Core-Lokts quite a bit out of a .270 & .30-06 on many white tail. I rember, if we found the bullets, they were perfect little mushrooms. It seems now, when I have tried them in a 7mm Rem Mag (and the same 270 & '06), the current bullets "pancake" out. Seldom do I get a mushroom. More times than not, the bullets are flattened out and do not resemble a mushroom what so ever. A few friends have seen similar results, but has anyone else had this happen?