I had 1500 rounds of Federal/Lake City M193. I mostly plink with my M1icon Carbines, since I reload cast for them, so I decided to sell off 500 of the M193 to fund my barrel purchase. I listed it on Gunbroker for $200+, and on a whim put a buy it now price of $325. It sold within 30 minutes of posting it for the buy it now! I paid $6.79/20 ($170/500) for it three months ago. That's insane! I almost doubled my money!