Ken, what are you doing buying a TC. Why didn't you purchase a Knight disc rifle. I have the .50, .45, and the TK2000 shotgun. I can hit dead nuts at 150 at 1" high at 100 with my .50. Have Dough Boy in the basement page me after next week and I will give you some more info. I will be out-of-state from the 25th thru 30th. So, get a hold of me the first week of Sept. If you are shooting the .50 cal., shoot the 250 grain Barnes Sabot with 3-50 grain Pyro pellets. Make sure and seat the bullet and pellets exactly the same each time and swab between each shot or you will be cleaning like a banshee if you don't. Take care. Full-Strut