While the price is tempting, I'd hate to see you depend upon such a low quality scope. I'm pretty sure that one is made in China and it shows.
A much, much, better choice is the Viper 6.5-20. I've used the 50mm version quite a bit and it's one of my favorite entry level LR scopes. The glass is very good for the price level, the tracking is accurate, precise and dead nuts repeatable, it has a lot of travel and has a couple reticles available that can be used to hold over or hold for wind.
I really don't think you can do better for the price. How much I liked this scope was one of the big reasons I ordered two PST's sight unseen. That's been a disappointment so far, but that's another story.
