Paul,
I can't tell you how many grains of black I use. Since day one of BP loading I have done volume for volume. My typical 10ga load is 1 1/4oz of shot and equal volume of either 1F or 2F Goex.
Two funny stories concerning BP shotgunning.
I was shooting a round of skeet with my 10ga at a local range. A small crowd developed and one smart aleck in the crowd asked if I was hitting them or breaking them with the concussion.....
Opening day of waterfowl season. My son and I were both useing 12ga hammerguns with BP and bismuth. Walking out on the dikes afterword we met up with the hunters who were across the open water from us. They asked (seriously) if we had a fire going. 'Uh, no.'
