Were they Egyptian Cotton or Kevlar tactical bed sheets
I really do feel your pain though. The one thing I seem to find at local gunshows a lot is exotic ammo for a good price. I see a fair share of 357 SIG, 10MM, all sorts of rounds I did not even know existed. I am considering adding a 10MM 1911 to my collection later this year so I might just have to stop by one early summer or late spring to pick up some ammo.
Funny enough my LGS is sold out of the "brand name" of most semi auto pistol calibers, except for 10MM! They had a giant stack of 10MM that looked mostly overlooked/untouched.