I use a 3/8 wood dowel, slotted on the end, chucked in a drill.
Big dam chunk of 0000 steel wool, some Hoppes, for a little lube.
Won't take too long.
Found out my turkey gun shoots better dirty, after doing this.
Went to an x-card shoot and didn't do crap!
Took a box of shells to get her back.
Not sure if it's the barrel, choke itself, or the wadcatchers in the choke, but she like
to be dirty.