Mark,
A picture would help, but remember, you can do a lot of grinding/cutting of the tumbler at the half-cock without affecting the performance of the trigger pull. The half-cock is only needed as the 'safety'. It does not affect the trigger pull nor accuracy of the gun.
I personally have had to re-cut the half-cock notch, sometimes severely, on several locks. Most of the time, it was a result of creating a good trigger pull only to discover that the half-cock notch was too high and would hit the sear (on a standard 'heavy' pull trigger, the sear is so far back due to a strong trigger finger, that it misses the half-cock hump of the tumbler.
Another way to look at it - If you're going to replace it anyway, what harm can you do reshaping the existing one? Even if you 'ruin' it, you were planning on tossing it anyway...
BTW: I use a Dremel with a narrow (thin) cutting disc to recut the notch. use a file to reduce the height of the tumbler. In this area, it's generally not hardened.
Good luck!!
-Mike
Mike 'Bootsie' Bodner
Palmetto Sharpshooter's, Commander
9996V
Bookmarks