Yes, The info on here is endless if you search a little.
Having owned 5 Swarovski's, 4 Leica 1200's and now a now vectronix PLRF10 Not to mention a few others that don't deserve to be mentioned here it is in a nut shell.
If you really want to know you are ranging the target and not the bush 10 or 20 yards closer at 1000 or even more so at 1500 yards you NEED the smalest beam divergence your budget will support.
Think of th beam of the RF like a beam of a flashlight. The farther you back up from the wall the larger the circle of light will be. (at 1000 yards the Swaro is a 6 foot circle) Now, lay that flashlight on the table (flat ground) The beam gets very long. This is what will bite you, as it WILL sooner or later be giving you returned numbers that are not correct. The correct yardage in my opinion is the most important info for a first round hit.
The swaro will record longer numbers than the Leica 1200 CRF but the Swaro has a larger beam divergence. So if you are truely going to engage game at 1000 plus, in time this will bite you. The Swaro did me on a 200" + white tail.
The Leica CRF's have a smaller beam and in my opinion with the addition of the new 1600 are the way to go for under $1000. I have played with one and was ranging a small bush over snow on flat groung to 1500 plus yards.
The ultimate. Vectronix PLRF10. It will do all you want and then some. It had THE smallest beam I have ever been able tofind. If thee is a smaller one I would like to know about it. I have ranged antelope on flat ground to 1500 plus, elk on a hillside at 2500 + yotes on flat ground to 1400 +. In all of these instances I was indeed on the animal as I tested by shooting over their back. If they were on flat ground a shot over the back got no reading. The elk on a hillside I got a 7 yard farther reading right above his back to the ground behind and it repeated with perfect consecutive numbers. Trees to 2900 yards.
Leica 1200 CRFY new about $600 now used $450 ~$500
Leica 1600 CRF new $700~$800
Swaro laserguide 8x30 new $999 used now $650 to $750
Vectrinix PLRF10 new $3700 to $4000
Hope this helps.