Are you going to shoot all that game in one day? Clean the gun at the end of the day.

I've taken 50 shots with no swabbing and a fast twist of a drill in the flame channel every 10 shots. Which can be done without taking out the BP. It takes 15 seconds.

CVA will give you a free shim kit is you ask for one. That takes care of all the blowback.

Seriously Tom. The MR is a great hunting gun.