I had a CVA Kodiak mag in .50 cal. I received this gun as a gift from my girlfriend (I had to marry her after that). I would still have the gun, but it was stolen from me in a burglary. It was a shooter. 245 grain Powerbelt arrowtips were dead on at 115 yards over 100 grains of 777 pellets. I did have a problem with the crud ring between shots. Not sure if it was due to the gun or the powder, but a consistent cleaning method seemed to cure this between every shot.