I've only recently acquired my first in-line, and have only used Pyrodex thus far, with great success. 777 works like a charm in my Cap and Balls.
Now on to the purpose of this post.
Back as a teen, (in the mid 60's) loading shotshells with a Lee hand loader, there was an option of replacing only the primer, and reusing the "Battery Cup" as I remember it being called. I have no idea what primers were being used, but is this an option for the "Crud Ring" problem?
I'll admit that replacing the primers in the battery cups will be more tedious than repriming .25 ACP cases, but it makes me wonder if it's a viable option.
Any thoughts or experiences?
R.M.