update. small update. At the advice of some of the experts I started fresh with some new brass and a clean barrel and this time starting at .02" off the lands instead of being .005" off the lands.
Nothing huge but I did a simple ladder test just to see where my max load would be and go from there.
RL 22, CCI200 208 Amax
T=60deg, Pressure 29.76, Light Rain. 100 yards
55.5gr - 2566fps
56.0gr - 2624fps
56.5gr - 2660fps
57.0gr - 2631fps (chrony error??)
57.5gr - 2668fps
58.0gr - 2661fps
58.5gr - 2705fps
59.0gr - 2743fps starting to see extractor marks but easy bolt lift
59.5gr - 2731fps
60.0gr - 2762fps extractor marks, still easy bolt lift.
picture of target:
Any input would be great. I think this combo has some potential. The group in the red outline are five shots with the charges listed in the according box.
Thanks again. I'm going to pick up some different powders to try too.