I just tested my LT SPR-E mount this weekend for repeatability. I had shot at a coyote early on Sunday morning, and missed it! I blamed it on the fact that I had removed the scope and remounted it a few days before without re-zeroing the rifle.
First I shot the rifle at 100yds to see if it was off, or if I just threw the shot.
I was hitting 6-7 inches high! Obviously there was a problem. Either the Larue mount did not return to zero, or there was some user error involved. I decided to test it.
I fired this group at 100yds
Then I removed the scope/mount. I dropped it in the soft/wet dirt (that was not part of the test, but it IS what happened). I then remounted the scope in the exact same place on the rail (this is probably where I messed up the first time, as I did not mark the rail), and shot this group.
I'd say it's still "on". Maybe not good enough for 1000yds, but it works just fine to knock down a coyote!