Hello, my name is Lucas Thompson. My .40 caliber Smith and Wesson Handgun breech swelled after firing 150 rounds of ammunition. The barrel started smoking, & I stopped to let it cool, then I fired the rest. I notice on my .40 caliber brass, the Brass is swelled at the head. I cannot seem to find a place that has extra barrels for my firearm? Does anybody know where I can find an extra barrels for my firearm? I would like to find one that is hardened steel barrel. I believe the steel was very weak, a very weak weak barrel. I've shot firearms all my life and I've never had a barrel swell the firing chamber like that and the brass swelled at the head. With only three Boxes of Ammunition worth, 150 rounds. The weak barrel is a factory defect.