I have seen references to peening ratchet teeth to correct slight SA Carry Up timing issues, but I have not been able to find a description in depth of the technique.

My background is in the collecting of vintage SxS Shotguns, and when I hear "Peening" my reaction is that some Hack has been at work.

The reason I ask is that I have been given an old M1917, that other than an old Nickel Refinish, and a SA carry up issue on three cylinders is in good shape. I just want to shoot it and feel safe about doing so. I also don't mind learning a little about Revolver tinkering on it as it has little value. The fitting of an oversized hand may be beyond my talents.

I will try to describe the carry up problem. When cocked very slowly three adjoining cylinders don't lock, if I pull the trigger with snap caps, the cylinder "snaps" into lock before the hammer falls completely.

Thanks in advance.