Depending on the climate you live in, having powder cling (from static) to the inside of the powder hopper / powder measure tube can be annoying. This is especially the case when trying to empty the powder out of the tube. 

Fortunately, there is a simple reloading trick for controlling static in your powder tube. Just wipe the inside of tube with a clothes dryer towel (the kind thrown in the dryer with clothes to prevent static). The powder will not stick to the tube with this simple trick.