Cadet, you should be fine. You seem to have a good grip on the situation.
I agree with Mr Legg, 3F should be good for lighter loads, prolly heavier ones too...but why push it if 2F works for you and you still have all your fingers?.
If you would like to afford yourself an extra measure of peace of mind and using the 2F for the heavier loads and they work...keep doing it!
I have to say, that 20ga load at 1300 fps looks like one I would actually stay away from in favor of a smokeless load of 3/4oz and a few flakes of PB or such at 1100-1200fps.
Lowest pressure is not everything in big picture.....7/8oz at 1300fps is gunna smart you and your 5 1/2 LB 20ga, black powder and low pressure or not!
Mark,
I agree. I would not use most of those loads. I am quite happy not to use 100grn in a 12ga. I much prefer the recoil at the 75grn level.
Pete
