no such thing as too much.
We have 3 areas of stored ammo.
Totally non tox lead free projectile and primer for our home range, 8 calibers 1,000 rds per caliber. Not carefully inventoried, just restocked when the stack gets to about 10 boxes per caliber.
"shooting shelf" this is ammo for outdoor shooting 1,000 to 2,000 rounds in 15 calibers. Not inventoried just reordered by eye.
Every time a caliber for the "shooting shelf" drops below 1,000 rds we buy 2 cases or 2,000 rds. We put 1 case back up on the shooting shelf and the 2nd case we put into long term storage... Just in case... Ya know zombies, it's not if only when!
Long term storage is now at 38,000 rds carefully inventoried And never tapped.
So all totaled we are at about 60,000 rds.
It doesn't go bad, both my kids shoot so it'll get used and appreciated.