A great deal of handloaders in no way heard of “seasoning” a new powder measure by working a pound or so of powder by way of it. The speculation is that the graphite coating around the powder granules (and during the dust at the bottom of a can of powder) https://fernandoyzwsu.buyoutblog.com/35381495/the-2-minute-rule-for-where-to-buy-reloading-powder-armscor-usa