If you buy into all the commercials and magazine ads you'd think round balls would probably just bounce right off of a deer's ribcage. Not true. I have the same rifle, it's a great shooter. I killed a fat WT doe last seaon and my ball passed right through. My eyesight with open sights is the effective range limiter for me, not the rifle or projectile choice. If you read any of the traditional muzzleloader forums the Lyman GPR is the most recommended production round ball rifle in terms of quality, price, and being historically correct.