As I stated on the other thread I didn't notice any gunk build up, but there may have been a reason for that due to I was shooting Winchester Supremes with it. Maybe the Supremes cleared out some of that stuff. Also, on both of those days I cleaned the gun as soon as I got done shooting.
charlie elk wrote: Shot 3 more shells from a different box, same thing. Fired another patterning round and left the gun overnight without cleaning. (like what happens in turkey camp) It was hard to clean after sitting for 24 hours.
Usually during turkey season my gun will be clean at the start of the season but won't be cleaned again until the season is over, unless I get caught in the rain. So if the build up is bad to clean after 24 hours, I would hate to see how bad it is after 23 days.
Does anyone know if Winchester has made any comment to this problem?