Over a 4 week block of training with the SCAR17 one guy will (depending on his job) put a high of 2,240ish rounds through his SCAR17 live fire, and about the same amount with blanks. For the guys with SCAR17s, they're using a NF scope or an ELCAN 1/4 power. I've not seen a NF fail on a SCAR. I have seen one ocular lens come loose, and I've seen one elevation turret mechanism go down during sniper specific training on MK13s. I doubt it had as much to do with the SCAR or the MK13 as it did with the number of rounds those two scopes had seen shot down range, and the typical (ab)use that all of our scopes and turrets are subjected to.
Over a week long sniper specific block of training each shooter will fire 300-350ish rounds through his MK20 or SCAR17, about the same number through his MK13, and about 80-100ish through his MK15 (50 cal); all using NF scopes.
I have been involved with 22ish of the week long sniper trips, and about the same number of that other specific 4 week block of training as a trainee or a trainer. I've dropped mine about 6 ft out of helos and seen them roll 200 yards down a mountainside, but still work for long shots hours later. To say I have confidence in NF scopes is an understatement.
The scope of our future, however, is the S&B 5-25 with the tremor2. I've used it for three trips now and I'm learning it, but it's impossible at this point to tell of its ruggedness.
Admittedly, I've only used one brand of scope extensively. Others here have a much broader experience profile than I.
LRTI
