What kind of barreland slugs ? What do you clean your barrel with ?? Not sure if this will help you, but i was shooting my 1187, after putting the new shurtshot stock on it at the range. I was shooting under 3" at 100yds. The guy next to me is shooting his 1100 all over the paper. We both had remington caneteilver barrels with scopes. I asked what he cleaned his barrel with , and he says a tornado brush. Well that doesnt domuch for a rifled barrel. We took a bronze brush with a patch wrapped around it and ran it through there, it looked he was shooting black powder out of it, scrubbed it for awhile and he was shooting pretty good with it. We were both shooting lightfields.....