I have an old English Double (G. Heminway) that needs new firing pins. Despite my best efforts, the firing pin retaining screws must be drilled out and replaced. I'm in new territory here. I know I've got to get the drill angle just right. I assume that if you draw a line through the axis of the firing pin, the screw bisects this line at a right angle? Further, what do the firing pins look like? are they cone shaped or stepped in some fashion? I further assume that a flat of some sort is milled in the pin for the retaining screw. I think if I limit the depth of the cut to the centerline of the firing pin I'll be alright. I've made a lot of assumptions here and we all know there's as a** in assumptions. If anyone is interested, this gun's twin (8 gauge, mine's a 10) has been on auction forever at Gunbroker.com at a grossly inflated price.
