Having shot Glocks for years, I decided I "needed" a Glock to hunt deer with here in Missouri. I hung a stand about 8 years ago and have gotten a nice buck out of it every year since. It's thick where I hunt (which is where the big deer feel safest) and I thought a 10mm would be just about right.
I invested in a KKM 6" 10mm barrel, Tru Glo night sights (which I'm very unhappy with) and Underwood Laboratories 200 Grain XTP at about 1350 fps (which I'm VERY happy with) (chronographed) out of my barrel.
This buck strutted up a trail near my stand after sparring with another very large buck (too thick to get a shot through).
I shot him at about 7 yards. The second picture, with the cartridge as a reference, shows the ENTRANCE hole. The bullet poked right through his heart and left about a 1" diameter hole and buried itself in the off shoulder blade.
It was a quick clean kill; the deer ran about 30 yards and expired (common with heart shots). He was a pretty fellow, with a healthy and shiny coat. After celebrating, and lamenting, his death I began taking care of the harvest!
I would have liked to seen an exit hole but, the off side shoulder blade was broken and his off side leg swung loose...I think the 10mm delivered a wallop.
so..."it" works, that 10mm Glock, for deer hunting. 100% of the time in MY experience so far. I do believe that he was just as dead as every deer I've killed with a rifle but, maybe there's other views...
Underwood Ammo rocks!