Some of the fact sheet for different public sites are ambiguous with regard to shotguns. Marseilles specifically says no slugs outside deer season, but does not mention buckshot. Green River says shotgun only, but does not mention slugs at all. Silver Springs says "shotgun with shotshell only" -- is buckshot a shot shell? I have a Savage 220, so I wonder about these things. Point being, it's hard to get straight info on Public sites.