Hi, I recently bought a .308 Rossi rifle new from Gander Mountain. I shot the gun for the first time this week and enjoyed the shooting session until the gun would not open any more. I cannot open the breech to put load another round in the chamber. I took it back to Gander Mountain, and the gunsmith said that it had a broken firing pin and that Gander Mountain would not repair under warranty but charge me around $75 dollars to do the repair. Is he correct that I have a broken firing pin? When I push the lever to open the breech, I can see down through the breach and the firing pin looks just fine. It does not appear to be broken. I am thinking that it might be from something broken in the shell extractor that is not allowing the breech to open, but I do not know. I really need advice, as I don't know what is causing the breach to not open? Has anyone heard of this problem? , or does anyone know what might be wrong with the gun?