I gave up on the 270 for it’s lack of penetration.
I was killing a Buffalo for a friend. Shot the Buffalo in the chest, the bullet exited the chest and went into a small hill behind the Buffalo, and completely failed to penetrate the hill.
Same thing happened to Eileen when she got a mature cow buffalo on a ranch in Texas, using a .270 borrowed from Charlie Sisk with 130-grain Barnes TSX handloads. It took a while to get a good shot because they'd been hunted some, and the country was typical South Texas brush. But we finally got within 150 yards, and shooting off sticks Eileen put the bullet just behind the shoulder of the biggest cow. It went about 40 yards and keeled over, leaking blood from both sides of the chest.
