I have a CVA double in 12 ga.

I use 100 gr. powder and 3 1/2 oz. #6 shot.

I pour the powder in then the over powder wad,thin paper like the (thickness of 4 or 5 sheets of paper) then a thick one ,(sorta like cork) then the shot , then the over shot wad.

I have tried the plastic cups,but I like the cardboard ones better.they fit tighter for me.

I try to hold my shots to 35 yards max. after all , thats the game; (gettem in close)

you just have to pattern your gun , just like a moderen gun.work up a load that you gun likes.