While many other popular calibers, including 9mm, have risen in price during the great ammo shortage of 2021; .22 LR has increased but not nearly as significantly. It is now possible to find a box of 400 rounds (Browning HP 36 grains 1280 fps) for less than $140 – just about $0.03 a round according to a recent survey of offerings found on CheaperThanDirt.com. When compared to the 5.56 NATO or .223 cartridges for the AR-15, which can be well over a $1 per round, it is easy to see why some shooters are buying an AR chambered for .22...