A couple of years ago, I took an inventory of my firearms and realized that I needed to maintain ammunition in 21 different calibers.
Obviously this logistical headache needed to be addressed. I told myself that I would streamline the armory to simplify my supply needs. I actually did sell a few guns and still have the sellers' remorse over it.
I re-assessed the ammo situation today, and there has been a change since that previous assessment.
I now have ammo needs across 29 different calibers. They are:
7.62x51mm (linked and loose)
Sigh. But it's not really a bad problem to have, is it?