I mentioned my scopes in an email, and the guy who teaches the class says they won't work.
At that point, I would be looking for a different instructor.
Apparently, he has his course, and requires certain special items in order that he doesn't need to change or adapt his course to the student's equipment.
that's fine, for some things, but I'd avoid those who say you need this, that, and the other thing, or don't even think about it...(and that goes for a lot of things other than long range shooting)
I think its better to find someone to teach you how to use what you already have, to the best of your ability, and let YOU decide what items you want, and need to upgrade, not demand you show up with them in order to get their instruction.
I'm not talking about specialty items you "need" in order to compete against others I'm talking about basics and learning to shoot at long range.
Sure, the scope on your deer rifle isn't the best choice for 1,000yd precision work, but that doesn't mean it won't work, it just means it won't work as well as something designed and purpose built.
Let your equipment show it's limitations, THEN decide what to change to get what you want. And. if possible, find an instructor who feels that way, too.