7.62x51 NATO ballistic coefficient chart
G1 and G7 ballistic coefficients for 16 7.62x51 NATO factory loads from 135 to 200 grains, with the manufacturer's muzzle velocity and, where published, bullet length.
| Load | Weight (gr) | G1 BC | G7 BC | Velocity (fps) | Length (in) |
|---|---|---|---|---|---|
| CBC 135gr. NATO Tracer | 135 | 0.358 | - | 2,674 | - |
| CBC 144gr. NATO Ball | 144 | 0.430 | - | 2,733 | - |
| PPU 145gr. M80 (PPRM762) | 145 | 0.404 | - | 2,835 | - |
| CBC 147gr. NATO Ball M80 | 147 | 0.398 | - | 2,735 | - |
| FNM 147gr. FMJ (m963) | 147 | 0.393 | - | 2,800 | 1.160 |
| PMC 147gr. X-TAC FMJ-BT (7.62X) | 147 | 0.398 | - | 2,800 | 1.160 |
| ZQI 147gr. MKE M80 | 147 | 0.393 | - | 2,713 | 1.047 |
| CBC 148gr. NATO AP | 148 | 0.398 | - | 2,674 | - |
| Federal 149gr. FMJ XM80C | 149 | 0.341 | - | 2,750 | - |
| Aguila 150gr. FMJBT (1E762110) | 150 | 0.341 | - | 2,750 | - |
| CBC 162gr. Match (MIL-C-46934B) | 162 | 0.413 | - | 2,461 | - |
| IMI 168gr. RazorCore Sierra MatchKing | 168 | 0.462 | 0.218 | 2,625 | 1.215 |
| Federal 175gr. Sierra MatchKing (GM762M2) | 175 | 0.505 | 0.250 | 2,600 | 1.242 |
| IMI 175gr.OTM | 175 | 0.505 | - | 2,526 | - |
| Winchester 175gr. M118LR BTHP | 175 | 0.496 | - | 2,620 | - |
| PPU 200gr. FMJ BT Subsonic (PPS762) | 200 | 0.429 | - | 1,050 | 1.500 |
Using these numbers
A ballistic coefficient describes how well a bullet keeps its speed against air resistance, compared with a standard reference projectile. G7 figures suit long, boat-tailed match and hunting bullets and stay more consistent across velocities; G1 figures are larger numbers for the same bullet and are what most manufacturers have published historically. Use whichever your calculator asks for, but never mix a G1 number with the G7 drag model.
Every load here is in the ballistic calculator's bullet library — search for it to build a range card in one step, then true the velocity against your own chronograph.