It may be preset with staking or soldering. A small merchandise would be that the pin which retains the firing pin spring cap tended to operate loose, and needed to be tapped back in place as one particular observed it undertaking within the rear in the bolt. Winchester replaced that https://highimpactrounds.com/product/winchester-super-x-270-win-150-gr-power-point-2850-fps-20-rd-box/