ignorance

[txcookie]

Got a horn. Do you pour the powder in the front? The back won't come off

[Red Badger]

Nope they're one time use only .... :)

Seriously -  yes you put a small funnel down the spout and fill it up that way.

[old salt]

The next time you go se your Dr. and he looks in your ears, ask for the plastic thing he puts on the light. They just pitch them any way

[Dogshirt]

Sometimes the knob on the back end will unscrew, but you will still need a funnel.

[William]

It's called an Ear speculum. Very handy for filling a powder horn or other things with very small openings. Google the term to find them for sale if your doctor won't give you one.

[flintboomer]

The same little black "funnel" is used during a hearing checkup for those of us who use hearing aids, so that is another potential source.

[Patocazador]

The next time you go se your Dr. and he looks in your ears, ask for the plastic thing he puts on the light. They just pitch them any way

My doctor doesn't use that gizmo; he says he just sees the chart on the opposite wall. 

[Hanshi]

  Everbodee am ignernt bout sumpun.