It could be a head space problem, measure the rim thickness of the stingers and ammo that shoots fine and see if there is a difference, the latest match .22Rf's mostly have adjustable headspace...
Type: Posts; User: shooternz
It could be a head space problem, measure the rim thickness of the stingers and ammo that shoots fine and see if there is a difference, the latest match .22Rf's mostly have adjustable headspace...