I got into a heated argument with a older fella' at work today about T/C barrels with the shallow grooves and round ball accuracy. I know my Renegade barrels are about .006" vs my green mountain barrels that are .010" - .012". He was trying to tell me that he has had T/C Hawken and Renegades and none would shoot round balls because of the shallow groove and the 1:48 twist barrels. I told him about the accuracy I get out of my Renegade barrels and he was basically calling me a liar. We both walked away pretty p****d off. I feel I get great accuracy and that he is full of it. Now I will say my GM barrels with the 1:70 twist really do shoot great (probably better) and pretty much shoot any patch/ball combo vs my 1:48 barrels that are a little more picky but I always have found a patch/ball combo that shoots accurately (hunting accuracy). What kind of accuracy do you fellows get with you factory T/C 1:48 Hawken/Rengade type barrels?