ok time to be honest here i posted this question after i already shot the bear with the load mentioned. result was a very dead bear
bullet performance was ok although i would use something that would make a bigger exit hole next time around maybe 400 gr winchester platinum tip slugs from a rifled 12 ga
tat should leave a 1 inch exit hole.
bullet hit square in the left shoulder at 30 yards it was all mushy, after going through just the hide and some fat there was a hole going in the chest i could stick 3 fingers in. u could feel the bone it was shattered. the bullet exited just in front of the right shoulder with a .270 size exit hole. what i think happened is when the expanding jacket hit the reinforcing ring in the jacket it sheared the petals off and just a .270 sized plug continued on. the bear was found after a few min of looking about 50 yards from the bait. it seems it ran in a half circle so it would have run farther than that. there was no blood for the first 15 yards or so. after that we werent looking for blood but i did see some walking up to the bear. there was very little blood on the fur on the exit side but quite a bit on the entrance, probably due to the huge hole just inside.
the bear hit the ground like a ton of bricks on the first shot i cycled the action put the cross hairs on his chest and figured no sense shooting him again he's done. at that point he got up turned around and left in a hurry. i shot twice more through the bush one nicked a hind leg. he was down just quivering after the first shot for no longer than 2 seconds. it was estimated to be 350 - 400 lbs alot of work getting it out of the bush.
i'm curious what size exit hole could one expect to see from a barnes tripple shock, nosler e tip or hornady gmx? my theory is to get a good sized exit hole for a good blood trail.