Not a valid youtube URLToday we test out the smallest and first .22 rimfire rounds ever made. Sometimes called .22 BB Cap, these use just the primer compound to propel them. Many people think "BB" means "ball bearing" but in this case, it means "ball breech". Despite being called "6mm" the projectile actually measures around .23" or 5.8mm.
It's actually rare to see these shot, I have yet to find a video showing anything but people talking about these rounds. It's easy to think these rounds are mere toys but they are still very deadly.
