ORIGINAL: Wolfhound76
A moot point for me anymore as all my charges are weighed. I work up a load with volumetric charges then weigh 10 of what's most accurate on my scale. I average the results and that's my powder charge.
Ditto for me on the above! And it pays off at the range with small groups also. It's just one of the tricks towards extreme accuracy in a muzzleloader.