Scope a 30-30 lever gun?? No way DUDE! Many are drilled and tapped for peep sights. That's the way to go!
Mine is D&T but there's no way in hell I would ever scope it.
IMO, scoping a Marlin is one thing...scoping a Winchester? Well...that's like putting a dadgum dress on Clint Eastwood or John Wayne.
You just don't do it.