Maddmax
US Veteran
I hear this a lot, but I don't agree with it. The fundamentals are the same with optics or irons. How is "mastering" irons the right way to go?
BANG !!! You have an EMP burst. ALL and EVERYTHING electronic has just become useless. Your red dot scope is now a dead battery holder with a window. Your wristwatch even has a black screen along with your cell phone. Got a candle or oil lamp ? Your flashlight is dead too. Drop or bang around that high $$$ scope, soak it in the freezing rain, cook it in the hot sun and see how long it holds up and holds anything close to a zero. Cracked glass, loose the seal... I've yet to see a scope last forever, they eventually wear out or at best DO loose there accuracy to some degree over time and use no matter what you paid or who made it. I've never seen a repair kit for fixing scopes.
NOW you are back to basics and those BUIS you never quite figured out how to use or ever even zeroed. Mastering your BUIS, if you can see it, you can still hit it at "almost" ANY range. IF you can get that broken scope off the weapon.