I load a lot of buckshot when reloading shotshells and therefore wanted a way to keep dust and debris out of the shot and powder hopper ports/charge bar on my MEC 600Jr Mark V when they're not in use. I designed these simple threaded caps to take the place of the hoppers in such a scenario. They're also useful when the press is being stored without the shot and powder hoppers installed.
The author marked this model as their own original creation.