[Sam1380]

I was just wondering how many times can you pump up a crosman 2200A air gun.

[Snowdog]

Until it starts leaking air, then you buy another.

I grew up with a Daisy Powerline 880 (back when it was metal) and never exceeded 10 pumps, as advised by the manufacturer.
But you'll always have some folks that tack on an additional 5 pumps or so, then complain later on when they find their pellet rifle won't hold air.