Caliber matchup
| Metric | .300 Blackout | 6.5 Creedmoor |
|---|---|---|
| Typical bullet | 125 gr | 140 gr |
| Muzzle velocity | 2215 fps | 2700 fps |
| Muzzle energy | 1360 ft·lb | 2266 ft·lb |
| Cost per round | $0.70 | $0.95 |
| Recoil | Mild | Moderate-light |
| Introduced | 2011 | 2007 |
| Best role | Suppressed / SBR | Long-range / hunting |
.300 Blackout: Subsonic-capable from short barrels; feeds from AR-15 mags.
6.5 Creedmoor: High-BC bullets stay supersonic past 1,200 yd; less wind drift than .308.
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