.22 Ammo

Biggest problem with the supply and demand thing is that when the government was buying up mass quanitiies of 9mm, .40 and .45ACP rounds, the ammo makers had to honor those orders first. Every available line that was tooled up for these rounds was running. Once big brother's appetite was satisfied, they could start working on refilling the shelves for normal consumers. Since a box of these rounds is more profitable for them than a box of .22LR shells, they continued to run these calibers to get the supply back up! Now that these are more readily available and they are catching up, they have started making .22LR rounds again too.