This .22 WMR bullet from CCI is designed to almost explode, or show extreme fragmentation, when used from a rifle on small rodents or varmints. And that it does—it is simply wicked on prairie dogs. Due to the drastic reduction in velocity from the short-barreled North American Arms Pug revolver, however, this bullet performed more like a controlled expansion bullet. It expanded almost 1.5 times its original diameter and penetrated 8 inches in the block of 10 percent ordnance gelatin.
| Load | Handgun | MV (fps) | PEN (inches) | EXP (inches) | RW (grains) |
| .22 WMR CCI 30-grain TNT | NAA PUG (1-inch barrel) | 732 | 8.25 | 0.34 | 30 |
