I've used Remington "core'lokt" for years. I've never have had a problem with them. I think that the "Core-lokt" bullet is the best of the 3 major ammunition makers. The 15 or 16 elk I've taken in Colorado will attest to that. Throw in a couple of black bear, antelope, mule deer-----Well, I'm going to stick to the 180 grain "Core-lokt" out of my 30/06.