Any Vectronix LRF is way better beyond a mile than any other LRF on the civilian market, period.
They are very expensive, and if it dies you end up with an expensive paperweight. They might fix it if it breaks, but it will be expensive and may take years.
If you shoot un known distance around a mile, the new SIG and Leica work pretty well, beyond 2000 yds. Vectronix rules.
Note: I used to have a Vectronix Terrapin, and it ranges well out to 2200-2300 yards. The 15 should work even better and further.