The problem I have is the cylinder latch unlocking under recoil. Have you ever had this type of problem? Any ideas to fix. Thanks PJB
This is actually fairly common, and there are several possibilities:
1) Dirty latch and/or latch tunnel: doesn't allow the latch to seat completely. Clean thoroughly.
2) Bad latch spring: the spring is a coiled type which is looped around the latch; they can distort and loose enough strength to firmly seat the latch. Replace spring.
3) Mis-machined latch depression: the latch seats into a depression milled into the underside of the frame (under the barrel.) Though not common, I've seen cases where that detent was mis-machined, and the latch couldn't get a solid "bite". While the best fix would be to re-mill that depression, it's usually easier to modify the latch to mate precisely. (Seems to happen to Palmer guns.)
4) Bad latch: make sure that the locking surface of the latch hasn't rounded over. If so, best to replace.
5) Bad crane lock: if the crane is loose (i.e., front-to-back movement when cylinder is close) it can, if severe enough, move enough to drive the latch up against the ramped area of the detent, causing a the latch to retract just enough to let go. Solution is to replace crane lock; if still loose, requires machining a crane lock specifically to fit that gun.
Hope this helps.
-=[ Grant ]=-
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"The world isn't flat, your gun shouldn't be either!"
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www.grantcunningham.com