make static measures only after using dynamic measures to settle on the best load, else you'll be gambling and wasting a buncha time. you didn't say what gauge smoothie/fowler. for the 20's i've had, and the new one about to arrive, the powder charge will probably be in the 65 to 70 grain range. and 7/8ths to 1oz of shot (7-1/2 or 8 shot). really will take some testing, though. less powder, more lead is the general rule. then decide on the wadding, too.