I’ve been having a look at the Sig Kilo models as well. At the price they seem like a good choice. From what I can tell, that’s a pretty good piece of kit for the money, but with the latest models you can get OnX integrated if you’re into that feature. The glass quality is the most important thing for me, and I’ve heard good things about the glass of both Sig and Vortex in this price range. But all this is about what you really need Burk things—rangefind or ballistics (and vice versa). That being said, I don’t think you can go wrong with the Kilo series, either way.