RE: 300 RUM SHOOTERS
raptor, sounds like someone feeding you a big one. I shot a moose with a RUM and 200gr partition, and was able to find the bullet with 70% wieght retention and stop behind the hide. A partition will hold together a lot better than a Corelok ultra.
What I heard from Remington Ammo employees, is they had an agreement to load partitions until they unvailed thier corlok ultra. This was a cost saving decision. I bet ya if they can get their corelok slugs flying right, they will discontinue the barnes copper solid too.
I mean think of this. You put this money into development and tooling of a bonded bullet. Would you really also sell a completed cartridge with a competitor's bullet. Guess what happens to the development cost of the tooling and R&D of your new bonded bullet?
I shoot partitions and barnes and never worry about exploding.