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Decided to try my hand at resolving my "stuck shut" problem so went back to the gunsmith last Thur to retrieve the Crescent 410. Per my usual luck, he already had it apart so I decided to let him go ahead and finish cleaning the guts of the gun. There were a couple of things that were noted both that day and today when we discussed the gun. There appears to be a piece of the stock missing (internally)...but nothing was found laying around inside so maybe it was removed at some earlier time that I'm not aware of. The safety linkage was interfering with the breach release slightly and not allowing it full travel. The spent shell that was in the gun was not really stuck in the chamber, but the primer had backed out of the shell base by about 0.020 inches as near as I can determine. The gun was able to be "released" fairly easily as the gun was disassembled and the firing pins are quite free and easily moved. So.....it's not exactly clear why the gun couldn't be broken open. When the spent shell is in the chamber, the primer is basically flush with the back of the barrel so it doesn't seem like it would cause an interference problem. The gun has definitely had the barrel to receiver joint peened to tighten it up, and when the breech is closed, it's pretty tight. I scrounged up a couple of low brass shells that I forgot I had and am thinking about repeating my experiment that caused the problem initially.
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