mwsenoj, after I posted recommending the Vortex Viper 2-7x32, I noticed that you are looking at shots out to 500yds. Although I would rather sacrifice some power in favor of glass quality, 7x might be a little short for your application.

I'm no expert on varmint shooting but I think most would claim that it's a tall order to get a decent long range scope for $250. You might want to consider the Vortex Crossfire line. The glass and build is not as good as the Viper, but you can get a 6-24x50 scope for 99 bucks at SWFA, which is 70% off retail. I don't have one but most seem to be happy with them. Lifetime transferrable warranty along with great CS.

At $99, you can then save up for something a little better down the road.