Quoted:
I told people to wear eye protection but when people are hunting they don't normally wear it.
I wanted this to simulate hunting to some degree.
I agree that you wanted it to simulate hunting, but if they are not wearing eye protection, then why are they wearing ear plugs? I know I don't wear hearing & eye protection while hunting, because I may fire one or 2 shots if I'm lucky and the chances of something going really wrong are slim, but when you are firing several shots and the other 10-20 shooters are firing the same amount, your chances are compounded greatly that something may go wrong.
I hope that you had a liability waiver signed by everyone! If not, I highly suggest that you do before anyone fires another round on your property. In it, it needs to state that everyone (shooters, spotters and guest) wears eye & hearing protection.
Just a suggestion for you. Looks like it was a lot of fun.