About 4 yrs ago I was breaking into long range hunting. The range finders I had purchased were the Bushnell 1500 and they didn't work all that well for me by the time I was getting out past 500 yrds. I had to get readings off of large dense trees at that point and it took several tryies to get a reading from 700 yrds away. Come winter when most of the leaves had fallen I couldn't get a range past 400 yrds to save my life. It wasn't the batteries because I had changed those, in fact did it often because I thought that might be the case and I made sure the glass was clean. They severly limited my enjoyment and my improvement to the point that I was determind to get a good set no matter what I had to pay for them. I was going to make sure that for 1k or more mony I didn't have the same frustrations, so I did a lot of checking and listend to a lot of coments about all range finders from those who shot long distance. (Found lots of informative literature and a lot of praises for the Bushnell's and others of the same class but those peaples idea of long range was not what mine was). Narrowed it down to two, Lieca or Sworvarski (parden the spelling of those ) and from what I had learnd about the two, either one was sure to solve my problems. I chose the Sworvarski just because they were a little cheaper but impressed with them I am. I can range a large rock, cow, small bush, cactus, dead tree, or anything from 1000 to 1100 yrds, most allways the first try considering you keep the range finders steady. I use my bushnells now for bow hunting. Nothing against Bushnell but they're not stored in my longrange bag no matter what distance they say they are good for.