Thank you, Hankins threads out the chamber for a breech plug and has a reputation for good work.
I'm specifically interested in a conversion where a .45-70 case is primed, loaded with powder, and used like a firestick cartridge as was mentioned earlier is this thread.
New here and hate to resurrect an old thread but it doesn't look like I can send PMs. I live in VA and am really interested in getting in touch with the gunsmith doing these 45-70 conversions @VAspeedgoat mentioned. If anybody can point me in that direction, please let me know. Thanks!