I have an opportunity to get a Viper HST 6-20x50 for a super price. It is going on my 6.5 PRC,and I'll be using it on steel out to 1000(and beyond?), and deer(out to 5-600).

I've never owned this scope and was wondering how it well it tracks, and is it consistently repeatable? The glass should be good enough for what I'm doing with it. Looking for answers from guys who use them, or who have used them. Thanks!