I see. That would be a problem, and it's something I've never seen in .338 partitions, even up close at high impact velocity. Maybe the jacket was/is thinner on the smaller caliber partitions. Shearing off instead and remaining attached and folding back at the partition. That would certainly explain our different experiences/results.
I'm currently loading Swift A-Frames and Trophy Bonded Bear Claws for close/medium range use on game, and for bear defense loads in 7mm and 308. The forward portion of lead core in those bullets are bonded to the jacket material, preventing the jacket from sheering off/away. I only have a few Trophy Bonded Bear Claws left in .338 and Trophy Bonded Bear Claws are no longer sold as boxed bullets for hand loaders. Which means I'll likely purchase some 275gr Swift A-Frames for bear defense in my .338s.
I'm currently loading Swift A-Frames and Trophy Bonded Bear Claws for close/medium range use on game, and for bear defense loads in 7mm and 308. The forward portion of lead core in those bullets are bonded to the jacket material, preventing the jacket from sheering off/away. I only have a few Trophy Bonded Bear Claws left in .338 and Trophy Bonded Bear Claws are no longer sold as boxed bullets for hand loaders. Which means I'll likely purchase some 275gr Swift A-Frames for bear defense in my .338s.