|
Doc it's a volumetric measurement that 30gr spout you have with a lite finger pressed on it would be 28gr by volume. No need to weigh it.
The volume is to be per grain = to the wieght of Black powder by the grain only. That's why the standard volume measurement is used, as pyrodex and other subs are lighter by weight, but measured as = to by volume.
30gr +/- .5(error margin of scale) = 30.5/29.5 (finger indent 2-4gr).
As long as all chambers are measured by volume the same way it don't really matter as long as they are accurate and consistant.
|