Thanks gents. I must have all the old stuff and wasn't aware all are drilled and tapped for the #8 screws. I have always been careful about the screws i use due to some rails and mounts having a non standard screw profile under the head. EGW has a certain taper. Weaver screws or flat base Allen head cap screws are a hack in the egw bases. But POI has always been a concern of mine. Good luck OP