I've got an old M8-4X Leupold on my 336SC .30/30. I had it "lying around", too. I doubt anything more would be useful, frankly.

Heck, I've used 4X scopes to kill deer at a quarter-mile, it oughta work on something of shorter range......................

You can roll a turd in peanuts, dip it in chocolate, and it still ain't no damn Baby Ruth.