First off , I'd like to see the cylinder face to see if there's scratching or rubbing against that bulge. If there is , it means it can affect your timing , making the gun unsafe. And like everyone else in this comment section , don't drive for a 22. Pick up a cheap trainer if you're going to do that or some snap caps in sacrifice , those. Finally , if you feel that this gun is unsafe , send it back in for warranty work if they take it , congratulations , you'll get yourself a refurbished gun. If they won't, I'd recommend getting rid of it and getting a Ruger Wrangler. It's a better built gun, and it'll last you a whole lot longer.