welcome 7600 rem, i also fire a few foulin shots on a clean barrel, but i leave my hunting guns fouled throughout the season[:-], may not be the thing to do but its what i have been doin for 20+ years, at the end of the season, when i put them up they get a serious cleaning

best of luck and oh yea!! a bunch of fouling will ruin your grouping or as some folks say your pattern[:-]