My daughter wants to do some black powder shot she'll shooting. I use a load all for reloading shotshells now. I picked up some pyrodex RS and am trying to get a 60 grain charge out of the hopper for a 7/8 oz load of shot. It's a 20 guage. I picked up fiber wads for these. Does anyone know what cc powder insert needs to be in the load all to get a 60 grain by volume charge?