Well, this turned into a bust. Bullets that shoot great out of my S&W 629 were horrible out of this Puma. I'm talking 8 to 10 inch groups at 25 yards. I can almost shoot better groups with the pistol at that distance. Leading in the gun was almost non-existent. I measured the bullets at .429, so I think they may be too small for this gun. Might need .431s as bad as they shot. I'll buy a box of factory rounds just to test the gun, but looks like these bullets are for the pistol only. All in all, I'm pretty disappointed. But on a side note, my repair worked.