[doorgunner69]

screen out felons and people with illegal firearms.

And just how will they know someone buying ammo has an "illegal" firearm? Buying 5.56mm or 7.52X39mm?

[Who is John Galt?]

And just how will they know someone buying ammo has an "illegal" firearm?

Well, every time some guy walks into a Dick's, and tries to buy a box of 20x110mmRB or 40x311mmR, it'll be a dead giveaway! When they get told "no" by the brain-dead Zillenial sales clerk, I'm absolutely sure a crime will have been prevented (or maybe committed?)...

;^)