I recently picked up an old T/C Renegade (.50cal)off of an old man for $125 bucks. The gun is in great condition considering the age.Because of mynot so good eyesight I put a 4X scope on it and itshoots .490 roundballs at 75 yards in a 2" group. I have already shot 4 deer this year so the freezer is full and I was bound and determined to shoot a deer with the round ball. The day before yesterday I shot a little doe at 60 yards quartering to me in the neck and the ball ran through her and came out in front of the rear ham. My dad has hunted with a .54 Hawkens for years with roundballs and taken deer out to 100 yards with ease and he recommends that if I choose to contine using the roundballs I should get a .54 GMB 1-70" twist drop in barrel. Im not doubting his experience but what do you all think. Also I dont want to shoot conicals due to leading issues, can you use powerbelts in the old renegade? is it effective? And also where I hunt I have shots out to 150 yards. Any info and suggestions would be greatly appreciated.