[marktwain]

There are about 100 million gun owners in the United States.

100 billion rounds would mean the average number of rounds each would be 1,000.

[riverrunner]

There are gun owners out there that a 1000 rounds of ammo per firearm would be the minimum.

[Riley]

I was wondering what the hell I was going to do with 100 billion rounds LOL

[Svartalfiar]

100 billion rounds would mean the average number of rounds each would be 1,000.

Most gun owners probably own a .22 rifle and/or pistol. And you usually buy the ammo for that in small bricks of 500 or 550 rounds. When I first bought one of my little rifles, Federal had a box of 550 rounds of .22lr at Academy, for $16 or $18 each. Nowadays it's closer to $25 or $30 per 500 rounds, but you still generally buy them two or three thousand at a time. I would really guess the average gun owner has more than 1,000 rounds stored.