Caliber matchup
| Metric | 5.56 NATO | .45-70 Govt |
|---|---|---|
| Typical bullet | 62 gr | 325 gr |
| Muzzle velocity | 3060 fps | 2050 fps |
| Muzzle energy | 1290 ft·lb | 3032 ft·lb |
| Cost per round | $0.45 | $1.60 |
| Recoil | Light | Heavy |
| Introduced | 1980 | 1873 |
| Best role | AR-15 standard | Brush / big bore |
5.56 NATO: Flat, light-recoiling, cheap; the American rifle round.
.45-70 Govt: Massive close-range thump from lever guns.
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