Tx,

What I meant was a 100gr "volume" charge of 2f, would be heavier if you used that same volume to measure 3f as it is finer grained.

I thought that by obtaining the volume to weight ratios,( i.e., 100gr of BP = 72 grs of Pyrodex), would actually give you an exact measure using the 3f.
Maybe starting out using 85grs. by volume of 3f, you might be equalling 100grs. of 2f BP........get me ?

Lane Nebraska is using the stuff, and has been, so I was kind of curious regarding speed & performance.

Bob