If you ever do decide to upgrade from the mustard bottle this one has served me well for more years than I can remember. It is inexpensive small, light, and holds enough powder for a dozen or more shots. It fits well in the palm of your hand and neatly in a pouch, bag or pocket eliminating the need for a horn or something as equally cumbersome, perfect for hunting.
Traditions also make one similar and both make an identical larger model.
But this one is by far my favorite of the many vessels that I have.
http://www.midwayusa.com/product/625729/cva-powder-flask-brass-25-oz
And if you ever do get one of these just remember to coat the threads of the end caps with a tiny bit of beeswax to prevent galling, sticking, or corrosion.
