That's mighty fine iron sight shooting Cayugad. Looks like you hit the perfect load right off the bat with 90 grains RS. I have become a firm believer in a straight alcohol patch between shots with 91% isopropyl.

Man, I'm dying to do some shooting - haven't made smoke since the 9th. I received the scope base adapter from Fox Ridge to put a 4x ProDiamond on the .54 GM Renegade barrel, but DANG, I didn't realize it wouldn't have mounting screws included. I have two screwsand need three. I've onlyshot that barrel once since I got it, about two dozen shots at 50 yards. Igot groups almost as good as those you got with your .50, which is pretty good for me with iron sights.Can't wait to get that scope on it and give it a workout at75 and 100 yards.