Plastic tipped highly expansive bullets work great - until they don’t. Even the 7mm 150 grain NBT that I had blow up on the ribs of a bull & leave a palm sized entry wound killed the elk. He just traveled over 500 yards until the shrapnel in his lungs bled him out.

I killed several elk & truck loads of deer with that combination & still think those are the best deer bullets going but have gone the Barnes TTSX for elk & wouldn’t go back.