One of the best tools at a defensive shooter’s disposal may be a rimfire pistol to practice with. The firearms are relatively inexpensive, as is the ammunition, which makes more practice, more affordable. As well, the .22s low recoil allows shooters to isolate and improve fundamental skills such as grip, sight picture and trigger press. There are a wide array of suitable firearms on the market today, from sporting-style .22s to rimfire reproductions of popular center-fire guns. This week we take a closer look at the little .22 Long Rifle cartridge, and talk about why it may be a big deal for defensive shooters. Check out this week's NRA Gun Gear of the Week video, hosted by Joe Kurtenbach.