In My opinion, you should have brass balls if you are going to try removing dents from a doublegun. Seriously though, I would think the ball would have to be very close to the original bore diameter to affect the dent accuratly. Also brass is probably to soft and would give way to the indented metal of the barrel. If however, the ball is close in diameter you may go ahead and try it. I can't see how brass could do more damage, unless you drive it through the choke- and it may work! Good luck, Kurt
