The core lokt that was used to kill my daughters doe at around 30 yards went straight through and the deer only did the dyeing quivers. 130gr. .270 was used. Never had a problem using Core-Lokts or Winchester Power Points. I cannot see the point in paying more for ammo than neccessary when the longest shots that we take around here is only about 120 yards. I am now doing up some reloads that are grouping a bit tighter for me though.