It could be fixed with staking or soldering. A little item would be that the pin which retains the firing pin spring cap tended to work unfastened, and needed to be tapped again in place as just one observed it task from your rear in the bolt. Winchester replaced that https://highimpactrounds.com/product/winchester-ammunition-long-beard-xr-20-gauge-3in-6-1-1-4-oz-shot-lok-lead-1000fps-10-rd-box/