Well here is what I use. The 215 Berger Hybrid. Right now my 300 win is at 31 and 0 for first round kills on big game out to 1300 yards. Mostly elk. I trust this bullet to help me place it well with its high BC and have had good expansion down to impact velocity of 1700 fps on soft antelope. I logged the first 20 or so kills with documentation in this thread.
http://www.longrangehunting.com/forums/f19/comparing-berger-210-vld-215-hybrid-88657/
With 300 win muzzle velocities at around 3000 fps, don't expect exits to be common on elk until you get past 5 to 600 yards. However you may have some at the very close distances too. In that thread you can see for yourself the terminal damage that is most common to vitals. I place the bullet behind the front shoulder in the crease just below center mass and they don't go far at all.
I do inspect all the tips on my hunting rounds to be open all the way back to the lead which is about .400" with the 215. But I find very few that are clogged on the 215's. Still worth checking though. I use a small pin vice and wire drill. But a pin would also work for a quick check.
The short bearing surface of the Berger Hybrid should allow very good velocity from the 300 win. With H-1000 I have seen several with 26" barrels go 2950. 28" barrels at or just over 3000.
I want the bullet that will increase my odds all it can at the longer pokes , yet still get the job done at the closer shots. This is a hard combo to come up with and there are no perfect bullets to do all jobs. But the 215 works well for me and I have not had one failure. This year we hosted a management hunt for elk on the ranch I manage. We too 60+ elk during this season. Mostly with Berger Hybrids either 300 grain or 215. The results and terminal performance were great.
Look that thread over and see if the terminal performance of the 215 is suitable for your personal needs.
Jeff