Here’s a list of what I did to improve / enhance the powder feeding performance you can try
1) Did you polish the metal bottom of the powder measure ?
2) Did you use a dryer sheet on the plastic to remove the static cling?
3) You can ream out each individual power funnel (part of the cartridge kit, and polish the inside of it to eliminate powder bridging)
Other than that it’s making sure you adjust the height of the powder measure so the shell lifts it enough to throw the powder bar all the way.
