That’s 49 rounds to QUALIFY - i.e.: pass a test. That doesn’t include any practice time.
It’s not unusual for a civvie to go thru 500 rounds just for an afternoon of plinking. A 4-day class can easily require 2500 rounds. And with prices rising with no peak in sight (and possible zero availability eventually), it only makes sense to stock up on a lifetime supply of a shelf-stable no-expiration-date consumable _now_ - esp. considering bulk purchases are cheaper.
I can't argue the sense of that at all. Having not really been "plinking" in a while, the amount of ammo burned escapes me.