Hi Joel,
If your Geovids won't range further than that, there's definitely a problem. Send them back to Leica for a collimation check (realignment of emitter to receiver). I've ranged elk at 1300 yards with the old 1300 yard rated Geovids. As to snow, the amount of infrared light (that causes snow blindness) is much greater over snow than other surfaces, and this negatively effects the performance of all rangefinders, some more than others. There's always a trade off. If I can be of help, don't hesitate to give me a shout.
