.22 LR
http://www.9mmammo.com/ammo-by-calib...lrn-50021.html
Details
500 rds - 22 lr CCI Blazer 22 40gr LRN 50021
If casual practice is getting expensive, look to BlazerŪ. Blazer uses aircraft-grade aluminum that's heat-treated to make an economical cartridge case. As the case is the most expensive component of any cartridge, our aluminum case lets us give you a cartridge that has all the performance of brass-case ammo at a more attractive price.
Edit: Sold Out