Thanks! I decided I was nearing the 'moment of truth' in that I had to drill the bores to make sure I was going to have everything line up. I chucked the block in my machinist vise mounted on the drill press and set the face to zero. That left the bottom...watertable.. at a slight angle which should mirror the standing breech angle of about 88 degrees. I started with about a 5/16th's bit since I did not want the bit to flex. To make sure I was centered, I started the bit and saw it was a thousand's or so off center from my center drilled starter. A tap or two lined it up and drilled. As near as can I can measure with my digital mike, I'm about .002 off. Looking down the holes with a bright light, The strikers appear to be dead center in the holes.