6.5x57 Mauser ballistic coefficient chart
G1 and G7 ballistic coefficients for 15 6.5x57 Mauser factory loads from 93 to 156 grains, with the manufacturer's muzzle velocity and, where published, bullet length.
| Load | Weight (gr) | G1 BC | G7 BC | Velocity (fps) | Length (in) |
|---|---|---|---|---|---|
| RWS 92.6gr TMS (211 70 61) | 93 | 0.255 | - | 3,313 | - |
| Sax 92.6gr. KJG-SR | 93 | 0.309 | - | 3,115 | 1.157 |
| Hirtenberger 105-grain Nosler SP (82200330) | 105 | 0.264 | - | 3,084 | - |
| RWS 108gr. KS (211 70 10) | 108 | 0.308 | - | 3,100 | - |
| Hirtenberger 120-grain Sierra SP (82200452) | 120 | 0.412 | - | 2,887 | - |
| PPU 123gr. SP (A-117) | 123 | 0.354 | - | 2,772 | - |
| Hirtenberger 125-grain Nosler SP (82200328) | 125 | 0.434 | - | 2,838 | - |
| RWS 126.5gr KS (211 70 96) | 127 | 0.361 | - | 2,854 | - |
| Blaser 127gr CDP | 127 | 0.400 | - | 2,690 | - |
| Sellier & Bellot 131-grain Soft Point (SBA65502) | 131 | 0.325 | - | 2,543 | - |
| PPU 139gr. FMJ BT (A-229) | 139 | 0.405 | - | 2,591 | - |
| PPU 139gr. SP BT (A-228) | 139 | 0.405 | - | 2,591 | - |
| Hirtenberger 140-grain Nosler SP (82200329) | 140 | 0.417 | - | 2,657 | - |
| RWS 140gr. DK (231 43 52) | 140 | 0.305 | - | 2,657 | - |
| PPU 156gr SP RN (A-230) | 156 | 0.284 | - | 2,427 | - |
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.