In pure rangefinding ability, I think the Sig has no peer right now. We've been chasing cull mule deer for the past 3 weeks, and the landowner has the leica 2400. It had the same problems my Geovid had in that in cold temps it was very unreliable, while my Sig 2200 never missed a beat and was better on non reflective targets most every time. Glass wise I'd pick Leica, but that was the only advantage I've seen. I also like the BDX for what it is, and the dope reads right off of Sig's ballistic app, which you input yourself from proven dope. It works perfectly so far.