I also load them with 90 gr Hornady XTP's. I figurer that ought to do the job. I did some ballistic testing just with pine boards, the xtp's seem like they would be good man-stoppers, but I am sort of torn on the bear,,,they would be fine for a lung shot, but I think I would still prefer the full metal in case of a frontal attack for skull or shoulder bones. I also worked up a load with .223 sabots, just to the point that the slide would work reliably, I am sure they were going well over 2000 fps, but they didnt even have the penetration of the big XTP's, so why bother. I have heard rumours of the sabots being hailed for superior penetration and expansion, but a Heavy 30 caliber bullet already begins its life 'expanded' more than a 22 EVER will, so my vote goes to the XTP over the sabot. It dosent make sense to me to take a firearm that has good stopping power and turn it into a 22 Mag.....Another experiment....one I havent tried yet, is to try loading one of these full metal backwards and exposing some of that nice soft lead. It would make one hellova close range bear/man stopper, and still wouldn't lead up the barrel. As a matter of fact...I forgot to mention....most of the milsurp 8mm Mauser full metal bullets can be pulled and re-inserted backwards, the Argintinian boat-tails have an excellent shape, and the lead is actually recessed slightly to make a nice hollow-point wad-cutter. I wouldn't actually DO this, because the ATF would probably dis-approve, I was just looking. A small amount of powder needs to be removed so the long spire points will fit into the case properly, so it wouldnt get the same velocity, but I have no doubt they would be effective within 100 yds.