I was in my tree stand when the doe came in to range. The gun was resting of the edge of the wall of the deer watch and I used it as a brace when firing. After the BANG I heard my clip fall to the ground as apparently the gun was resting on the clip and the clip was not locked in. Sadly, and foolishly, I had no other ammunition with me as I was hunting only a few hundred yards from my car and thought I'd never need more ammo. The deer stood there just looking around,not even moving. Finally it backed off and lay down. Plenty of second shots were available if only I had a cartridge for my .270. I started to slowly get down but the deer would have none of it and she was off. I looked hard that night and the next day but no blood or hair. To this day I cringe about the incident.