This is the load I use, mostly because of stuff I had on hand. Sorry if it's not helpful, but used it for a grouse load with the brush wad. Was a little hot but birds died.
Rio Hull Rio 209
3/4 Oz #9
BPI Brush Wad
20g Herco
#31 Bushing on MEC 600Jr
8200 PSI 1295 fps
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