Leupolds are absolutely known for their durability though. The US Army Precision Sniper Team uses Leupolds - Mark5 HDs, but Leupolds none the less.
Well that is just for their
training program, but they do issue MK5s for US Customs & Border Protection and on their M110s, but there are so many factors involved in securing a military contract other than the optic itself.
Not that Leupold doesn't have military success, it does, the MK4 has been a long standing military issued scope; it also has different internals than the scopes mentioned in the discussion here and the fixed power MK4s are some of the most durable scopes ever made.
USSS snipers at Trumps rally from the shooting yesterday were rocking NF. Does that make NF the end all be all for all optics?
Not from that fact alone. I believe in scientific methods that produce repeatable, measurable results, and encourage anyone to do the same.
Since opening this thread, I've really dug into the standards
majority of optic reviews and come to the conclusion that things that I value are often
not tested at all such as zero-retention, drop tests, even tracking.
For the life of me I can't find a Leupold MK5, VX3 etc. passing a drop test, and until I do, I won't call them durable.
Honestly, I would be very happy if that changed since there is
so much the MK5 has right.