You may want to consider a Wotac. They've gotten a reputation as being a very good scope for the money. I plan on getting one myself as soon as they are in stock again (which should be next week). Their 4-14x50 model costs $329, which is slightly over your $300 budget but is still cheaper than the most comparable Falcon. There's a review of a Wotac just a couple topics below this one. Here's a link to their website:
http://www.sightwonders.com/wotac.html
http://www.sightwonders.com/wotac.html