Tested some Leupold RX4 lasers recently...
Leupold RX4 -- I had high hopes for this unit, but it bombed big time in field testing. I tested several new units and NONE of them went past 900 yards on HUGE targets. Most had a hard time getting past 750 yards on a house sized target. I was very dissapointed in this device and don't plan on stocking them. If they would hit 1200 regularly on large targets the gizmos might be fun to play with.
Swarovski is still the king for repeatable longest distance, under $1500, with 1.1 mile ranging on large targets. 2nd place is the Bushnell elite 1500 at 1600 yards (be aware that we get 30% bad ones from Bushnell and have to send them back), 3rd place is the Newcon LRB 7x50 binos (still hits 1400 on large targets, but we gave up on the Newcon 1500s and 2000s due to poor QC, 4th place is Leica 1200 which will usually hit 1000 on large targets.