Ron
Sorry I can't recommend a load for you either and it probably wouldn't do you any good any way as most of my load data was for ADI powders although I think some of those are now sold under the hodgdon powder brand and I found data that was good for one brand of case wasn't necessarily good for another and all my data was for cast bullets with Felix lube and even changing lube made a difference in accuracy in my guns , all my loads were for Ruger Blackhawks one of my favourite loads was for a 265 gn cast bullet with 8.8 gns of AP70 which I think but am not certain is Universal , it gave me very good accuracy and 970 fps +/- 5 fps out of my 5 1/2" barrelled ruger , but 970 to 1030 fps out of my 4 5/8" barrelled ruger , mediocre accuracy at best , never could get any load consistent enough for my tastes with that gun and sold it off early on , yes I know it's strange to get higher velocity out of as shorter gun but I think the chambers on that particular gun were tighter and the chamber throats definitely were and there was a considerable restriction where the barrel was screwed into the frame , Same load was crap in my 7 1/2" ruger and gave a variation from 930 fps to 1031 fps , only load I ever got to shoot reasonably well in the 7 1/2" was 11.1 gns of AP70 for 1165 fps , +/- 10 fps , strangely enough that load was probably the best load for the 4 5/8" as well with 1125 fps , +/- 20 fps
For any of my loads above 900 fps I only ever used the same brand of case I only ever used my mixed cases for plinking and I mainly used GM3 powder for that which I think but can't say for sure may be around the same burning rate as clays or red dot or maybe even as slow as trail boss , I found that in some cases and calibres it tended to be erratic and tended to change burning rate slightly depending on the airgap in the case
David