Black Powder Funnel

This is a funnel that I made to screw to the top of a bottle of black powder to make pouring powder measures easier.

-EDIT-
Added a second version with a screw top and cap. Now you can just replace your original cap with this funnel

I have it mounted on a 16oz Hodgdon bottle.

The end that mates to the bottle of powder is threaded to fit snugly while using.