re: 30-06 core lock 150 grain

Look man, first and foremost shoot what works for you. If you've shot a shitpile of deer with it and never been dissatisfied than don't change. You're fixing problems you don't even have. Piles upon piles of deer are killed weekly with the core lock in this country. I put my dog on more deer shot with core lock than anything else because far more deer get shot with core locks than anything else. The percentage of fail-to-exits is not high by any stretch.

That said, I would shoot a premium bullet if I was shooting deer with a .270wsm. It's a fast caliber that uses light bullets which isn't really what the core lock is designed for. I would use Nosler partition (if my gun shot them well), barns TSX, Nosler accubond, Nosler ballistic tip, or one of the other top-shelf bullets out there. If you shoot a deer at 20 yard square in the shoulder knuckle you'll need a very tough bullet to drive through.

That's just my option. You should shoot what your gun likes and what you like. Don't go on a witch hunt because of some internet babble. I personally use core locks in my .30-30 without a second thought and have never had a bad experience with that combo. Out of my 06 I shoot 180gr partitions, mainly just because I can.