I appreciate your input guys. but you are too late. I used a 1/2" sanding drum on a Dremel tool and ground .011" from the inside curve of the hammer. They come down perfectly on the nipples now, and fire flawlessly with CCI #11's. My clue for the fix was the fact that there was a contact mark on the hammers from striking the back of the frame. Then I measured the factory and replacement nipples to learn the difference. If anything, the polish I imparted with the sanding drum is smoother than the original finish, though the case colours are gone in that small area. I'm happy with the fix.