I am seeing a few posts & threads about the Model 500 "BREAKING" This past Sunday I shot my 1,000th round through it. I have owned my 500 for over 10yrs. I have never had any issues with it. I keep all my guns crazy clean and well oiled/lubed. In my Model500 I have shot anything from the no longer made .500 special to .600 grain rounds. My favorites are a 325gr or a 350gr. I take great care of all my guns. I own a Colt King Cobra .357 with over 50,000 rounds through it, S&W Model 64 with 25,000 rounds and my duty weapon (M&P .40) with over 12,000 rounds through it. My dad always said, "Take care of your gun, your life might depend on it."
I am sorry that some of my fellow shooters had issues with your gun. Just had to throw my 2 cents.....