I've probably got 20K rounds.
About a third of it is 22lr. I like to keep a few thousand each of 9mm, 223rem, and 45acp...and then 500 or so of the various other rounds that I shoot. Remembering the supply situation about 3 years ago has resulted in my steady accumilation over the past couple years.
BTW- The supply has been drying up in recent weeks. Retailers are blaming massive government purchasing of 9mm, 40sw, 45acp, 223, and 308.
"The Future is Unwritten"