When I shot the blacktail with the 10mm Kimber, I was using factory Buffalo bore bullets. With the XD, I just use a 180gr fmj. So far it likes Magtechs of all things. Oh well, when I get my supply of brass built up, Ill get some new Hornady dies for it, and play. So far I have never loaded for a handgun in semi auto.
My buddy and I went after a bear with handguns once (revolvers). I had a Ruger 44mag, and he had a S&W 357. We spotted one, but my buddy wanted me to shoot his S&W, so I did. That got the bear excited! That bear is now a rug he's got hangin on his wall with a hole thru its left ear...... I never could hit a dang thing with a Smith. Any how the bear got mad and we swiched our guns back in a hurry. He soaked up a few rounds from both guns in a quick hurry, and died. We were on foot, on the ground with the bear at about 30ish yards at that point (who was ****ed about the whole ear thing) and for some reason we decided it would be a good idea to swich guns........... real bright idea huh. Theres a whole lot more story to go with this, but you didnt ask to here a long winded story. I got a knack of keeping my guardian angel on his feet.
Havent tried with the .40 yet, and dont plan to. But Id be confident with it as my backup. As long as it didnt have hollowpoints, and the range was adequate for penetration. Usually as a back up you dont have to worry about range
its all shot placement. I can be a bumbeling iddiot sometimes, but for some reason, when the heat is on, I'm zoned, Im relaxed, and shoot better than when I have to think about things, as long as Im confident with my gun before hand.
Oh and Phorwath, I here ya on the Glock fitting your hand thing. Thats why I went with the XD. But some folks love em for the way they fit. Either way, theyre both great guns. But Im still a 1911 fan.