I have owned several IOR scopes, and still have 3 - two 4X hunting scopes and their big 9-36X tactical job with the 34mmtube that I use for a base line scope for rifle evaluation and I often have it on my shoot long range rifles.
If these scopes ever go "out of whack", I won't selling them , if I can't get them serviced I'll toss them.
Sad, because they are a good scope, but if something is broke it doesn't matter how good the product is, that particular product is a piece of junk!!
if a Leupold breaks, it can get fixed quick. An IOR? Ican't answer that, but I'm not too optimistic....
Cat