Chamber reamer extension?

[Willys]

I did the shot case trick but used a piece of 320 grit cut from a peel and stick sanding disk. I think a strip stick through a slotted wood dowel may be best. You can by chamber hones on amazon too.

 

[11A-18A Vet.]

Lots of good advice. I will chew on this and decide how to go forward. Thanks!