Oy vey Clarence!
Originally Posted by ClemBert
BP substitutes such as Pyrodex and 777 MUST always be measured by volume.
Do NOT weigh Pyrodex. Period.
The granularity of Pyrodex in not the same as BP.
Just as a point of reference, you should know that a Walker will hold near 60 grains of BP and allow you to stuff a ball in there as the powder gets compressed.