Thanks for all the advice! Not sure what the problem is and since I did mess with the center pin I ordered a new one form GPC. Unfortunately it was different that the one in the revolver, a 19-3 and the shoulder thing is a different location. I had bought one of the imported barrel-less K frames from one of the distributors a couple years ago as I thought I had a 2" barrel in my stash and I did, but the wrong 2" barrel. I made that into a 4" revolver and it works fine so I took the crane or yoke from the 19 and put the .38 cylinder on it and put it in the Model 10-7 import. It works fine. If I put the .38 cylinder into the 19 with the 19 crane or yoke (pardon me for not know what the correct name is for the part) it also works. So it seems that the cylinder may be the issue. Gonna have to dig throught the parts pile to see if there is a .357 cylinder in there.

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Gazz