It's every shooters responsibility to clean their rifle properly, and maintain it in A-1 condition. Contact local 4-H, National Muzzleloading Rifle Association, Boy Scout, and NRA Organizations. Many of these groups can offer courses of instructions. Check with your local gun club as well. Many old time target shooters used to attach a false muzzle to their rifle barrel for loading purposes, to guarantee precise alignment of the projectile during the loading procedure.
Muzzle is built right into the end of the barrel in all of our rifles permanently.
You merely drop the projectile in the barrel and go straight to your ramrod, using short strokes. It eliminates the hassle of trying to align the projectile with one hand, and drive it into the rifling with a short starter. Enclose a letter with your unit explaining the work you wish to have performed, along with your phone number, and address to expedite handling.