|
I think you guys are misremembering the part where I pass the previously-tapped dipper under a straightedge to level the surface. Prior to that step, the dipper is heaped with powder above its lip. Tapping it has simply caused some of the powder to sink below the level of the dipper's lip. A little may fall off, but the straightedge takes more off.
This is analogous to tapping a rotary powder measure while the cavity is open to the hopper, so that more powder enters the cavity before the cavity is turned down (past a solid scraping edge) to dump the powder it contains into the case. Some rotary measures (e.g., Lyman) actually have a weight hinged to the side of the measure to facilitate a uniform "tap."
SL1
|