Don't have a precise count of ammo. My focus with guns is collecting, not shooting. That said,
(1) I have at least some ammo for each gun.
(2) There's a disproportionate amount of surplus .303 British, which I got at a bargain. This is for my three No. 4 Enfields.
(3) I have lots of guns in .30-06, but not much ammo in that caliber. Same goes for 5.56 mm, .45 ACP, and 9 mm.
(4) There is one sealed can of .50 BMG API (110 rounds). I'm not opening that spam can.
(5) I actually have more blank ammo in .30-06 than live, bulleted rounds (in any caliber). This is left over from my days doing WW1 / WW2 reenacting.
(6) Buying more ammo is low on my list of priorities. Selling what I do have is not happening, either.