I am having the worst luck with guns lately. I don't even want to go into my Dan Wesson issues.

Shooting my 1983 Nickel 586 (no dash) (also no mod) with Magtech 158 grain .357 and right after a shot, the cylinder locks up. Can't cock it, can't pull the trigger, can't open the cylinder.

I checked the front most screw to see if it was loose, and it is not. So, thoughts? Could it be the lockup that is fixed with the mod? I have never heard of a 586 going down with this, and I understood the problem to occur with the hot loaded 110's, not the moderately loaded 158's.

I am a little nervous futzing with it because the gun it loaded. The hammer is down on a spent round, but there are live ones to follow.

BTW, this also begs a question about shipping it back to S&W, which is what I am likely to do. How do you certify that the gun is not loaded, as required by federal law, when it is, and you cannot unload it?

Thanks for your time.