I've never had the problem... but I only use jacketed rounds. But I only have about 5000 rounds through my .40 and 2000 through the .357.
I have a friend that helps me with my reloading. He buys the cheapest components he can find... often even buying 10,000 rounds of "rejected" ammo so he can tear it apart and use them individually. We have always differed on our oppinion of a decent price/component vs the cheapest price/component. I'm glad he's such a cheapscate... if he didn't cross over the line between price and reliability, I wouldn't have such a good idea where it was.
And... when guns go bad... they go bad. I can't see throwing them out, but I'm not going to hand feed them either. They'll get retired... put out to pasture so to speak.
MiniD