Sharp rifle.
Please let us know how that 2x7 works out: I have a CG Mauser with a side mount that I'm trying to land on some glass for - was going to go with a vintage K4 but have been on the fence about a Burris 2-7 Fullfield.
Long story short...I am a HUGE Burris fan. Didn't start out that way; I used another mainline manufacturer for years. Until I looked at 2 CZs I got on trade. Coincidently, one of those was a 6.5X55. The Swede had the other glass, the .22 had a Burris. Upon getting them home, I had them side by side and was checking my new rifles out. The other scope was a higher end model from a respected company; the Burris was a Fullfield. The latter was INCREDIBLY brighter and clearer in the twilight than the other, for roughly 1/4 the price. Since this experience a few years ago, I've scoped up several rifles with Burris. All Fullfields and a Veracity. I have not been satisfied, but duly impressed. Only two faults I find with their current lineup (and I find this with virtually all manufacturers) is that they don't offer much with a simple duplex reticle, and I couldn't find anything to fit my .375 with a super low magnification through a mid-range magnification. I say the latter admitting to the fact that I've never cranked a scope up higher than it's lowest setting on anything larger than groundhogs.
A note on the K4 vs Fullfield...another thing to consider is that the K4 will be in a gloss finish...perhaps better fitting of the rifle. Also, if you look around...you can find a K4 in a German 4 reticle (of which I am a HUGE fan...)