I've read both sides of the powerbelt stories also. I have hunted with them but never got the chance to shoot/use them. I would think the big thing is how accurate they are out of your rifle. The rest would be shot placement.

Shot placement with any projectile is still the #1 think to be concerned about. If you can not hit your target, then the bullet, no matter how well it might work will do you no good.

I've just picked up the 245 aero tips, 295 copper hollow points, and 348 copper hollow points on sale at Wal Mart. I intend to do some real testing with them this summer on real expansion tests and see how well they all do.... My CVA Staghorn really shoots them well.