Loyalist Dave
Member
Complete waste of time with. Just my opinion.
With black powder or substitutes a large portion of the charge is smoke or soot. A few grains, + or -, let alone a few kernels of powder ain’t going to make much difference.
I’ve run enough black powder loads over a chronograph to arrive at that conclusion.
AGREED
The low pressure requirements of BP substitutes means that unlike something like IMR3031 or Win 231 smokeless powder in a metallic cartridge, where one grain of powder makes a noticed difference..., Black powder doesn't show much if any difference until five or even 10 grain increments, depending on the weight of the projectile and the length of the barrel. As mentioned fellows shooting out to 200 yards, or to 220 yards [40 rods in the previous century] used volume measures. They concentrated on consistent use of the measure and on testing each "lot" of powder as it was purchased.
LD