I killed my first deer with a handgun today. I killed a small doe at 40 yards with a Glock Model 40 MOS, it is their long slide 10mm. I was shooting HPR 180gr XTP hollowpoints. She was quartering hard away from me, more than I realized. The bullet entered the right side, near the rear of the ribs and stopped under the shoulder on the left side. She mule kicked and went she went to run, I fired again, this round hit her in the spine and took out a 2" section of her spine. She went about 20 feet.