Caliber matchup
| Metric | .223 Remington | .22 LR |
|---|---|---|
| Typical bullet | 55 gr | 40 gr |
| Muzzle velocity | 3240 fps | 1255 fps |
| Muzzle energy | 1282 ft·lb | 140 ft·lb |
| Cost per round | $0.42 | $0.08 |
| Recoil | Light | None |
| Introduced | 1964 | 1887 |
| Best role | Varmint / range | Training / plinking |
.223 Remington: SAAMI sibling of 5.56; check chamber markings.
.22 LR: The cheapest trigger time there is.
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