RE: Bore condition when stored vs. hunting
For S&G's try a light gun oil instead of BB for storage or after cleaning protection. Prior toloading run dry patchs through to ensure all the excess oil is removed. Snap a couple of primers just to make sure the breech area is clear and free. Then see if the POI shifted or not!
I don't have any problems with my ML's in this regard and hunt on clean barrels, with not a worry about a possible 2nd or 3rd. I also don't worry about leaving my loaded for extended periods unfiredand never had to worry about cleaning when I do fire. If wet weather I always shoot out the load and completely clean before reloading and hunting again.
I don't like BB, allI use issheath.