I try to keep suggestions within a person's stated budget, but in your case I am not going to do that. If you can beg, borrow, or steal (ok - don't steal) an extra $39.99, you can get a demo Zen-Ray ED3 from cameralandny.com. It will blow away anthing else in the sub-$300 range, and is in fact one of the better buys in anything under about $750 or so.
If you just can't swing that, then look at the Vanguard Endeavor ED which can occasionally still be found in your price range. The Bushnell UL isn't bad, but the Endeavor has a better construction and better accessories. The Endeavor has a sharp and bright view, but also does have some CA too.
p.s. The Vortex Diamondback has a lot of admirers, and can be found in your price range. I'm not a big fan, especially since you can get the light-years better ED3 for not too much more, but they might be worth your time to investigate, as would be the Nikon M-series. But really - squeeze out an extra forty bucks and get the ED3......