What I'm going to say is not advice. It is purely a question.
I shoot mostly traditional firearms with traditional scopes in traditional mounts. Mostly, I put a scope on and boresight it, and leave it on for a decade or more. I have one Leupold QD mount on a rifle that I've never really tested to see if it held zero after taking off the scope, but he mount looks solid and it's held zero for a decade or more at a time.
So here's my question: My sons have AR-style rifles and their friends do as well. As far as they're concerned, a picatinny rail is an invitation to put things on and off at will, including red dot and conventional scopes. There's no re-zeroing. They think nothing of taking a scope off, shooting for a while with the iron sights and then putting the scope back on and shooting at longer distances. What's up with that? I'd be laughing at the foolishness, but they seem to hit the gong as often as I do.
