I was 13 years. My dad had a hunting lease south of Palo Duro Canyon in Texas. I didnt have a hunting license and never shot a rifle before but I asked my dad if I could carry his second rifle. He let me and away we went. I stayed several feet behind him until we made it to the top of the little mountain. We were glassing a small wheat field on the bottom of the other and I spotted a herd of mulies. He told me to stay put and he would try to bird dog them my way. It took him it seemed all day to get into position. He started banging on a fence post and the mulies all perked up and staired at him. I was ontop of the mountain and could see hima nd the deer just praying that they would make there way towards me. They finally spooked enough and sure enough they came right at me. I spotted the biggest buck in the herd and kept my eyes on him. They made it directly below me, stopped and twisted their heads back to look at my dad. I pulled up the 6mm and looked through the scope. Dang, that scope had two lines going accross and I didnt know which one to use. I decided to use the bottom line and fired.... nothing, not even a flinch. I pumped the rifle and put another round in the chamber, I aimed again and fired.... nothing, still not even a flinch. I pumped the rifle the second time, aimed still using the bottom line and fired.... nothing, the deer didnt move an inch. They were focused on my dad. I pumped the rifle the 3rd time aimed the same way and fired... still nothing. I started thinking, please dont run off. I pumped the rifle the 4th time and I was out of ammo. I reached into my pocket to get more rounds. I tried to pull the magazine out of the rifle and my hands were so cold and that I couldnt get it out. I pumped the rifle and loaded it single shot style. I aimed and this time I decided to use the top line in the scope and boom.... the buck dropped. It was about a 75 yard shot. He was little 7 point basket rack muley. I will never forget that hunt.