Have just purchased a new rifle for long range whitetail hunting and the final item to get is a LRF. I have an old one but it just won’t get it done, it will not range a deer over 400 yards away and would like better performance than that. I do not have a big budget for this purchase. From reading on here I think the sig kilo 2200 would be a good choice. I am a vortex fan and was wondering if anyone has any experience with the ranger 1800? It states it will range a deer at 900. Any thoughts on my two choices? Experiences? I do not have anywhere I can go look at any so relying on you guys again. Would like to stay under 500. Thanks very much in advance.