It may be fixed with staking or soldering. A little merchandise is that the pin which retains the firing pin spring cap tended to work unfastened, and had to be tapped back in place as a person noticed it venture from the rear of your bolt. Winchester replaced that pin https://highimpactrounds.com/product/winchester-super-target-12ga-2-75in-1-1-8-oz-8-shotshell-1145-fps-25-rd-box/