Re: BSA, 6 - 24x40mm (or 50mm).
If you check out Sportsman's Guide, There's a Simmons Whitetail 6.5-20x50 that's usually on sale for $140 or so. I think Nazchez has them on sale for even less sometimes. I have one on a .243 IMP and it's been working fine. Seems to hold zero, and the optics, while not awsome, are better than every other scope I've looked through in that price range.
Good Shooting, Coyoter
All it takes is One Good Shot!