I filed the latch on mine, and I use .457 balls. I had to use JB weld to mold the cavity in the end of the rammer to conform to the round balls, as it would pull them back out of the cylinder after I shoved them in. Keeping the lever screws tight also helps keep it from dropping. I had a dovetail cut in the barrel of my Walker so I could install a taller front sight, and I plan to do the same to my Dragoon. More fun than any other pistols I've ever owned.