I am trying to load some 20ga shells using Hodgdon Pyrodex RS. I have been loading it in 12ga for a long time and my loading press is set for 3 dram by volume since Hodgdon literature indicates you can’t weight Pyrodex to the same standard as black powder. Wondering how to get 2 1/4 drams of Pyrodex?
On another note I came across this and wonder how true it holds:
In 12 gauge, a standard 3 dram load with 1-1/8 oz of shot travels 1200 fps. Each 1/4 dram equivalent that you add increases velocity 55 fps. Each 1/8 oz of shot that you add subtracts 35 fps.
