7x57 Mauser ballistic coefficient chart
G1 and G7 ballistic coefficients for 25 7x57 Mauser factory loads from 124 to 175 grains, with the manufacturer's muzzle velocity and, where published, bullet length.
| Load | Weight (gr) | G1 BC | G7 BC | Velocity (fps) | Length (in) |
|---|---|---|---|---|---|
| RWS 123.5gr KS (211 73 39) | 124 | 0.290 | - | 2,952 | - |
| Geco 126.5gr. Zero (2318817) | 127 | 0.274 | - | 2,851 | - |
| Hornady 139-grain SST-Light Magnum (85554) | 139 | 0.457 | - | 2,830 | - |
| Federal 140-grain Nosler Partition (P7C) | 140 | 0.430 | - | 2,660 | - |
| Federal 140-grain Speer Hot-Cor SP (7B) | 140 | 0.430 | - | 2,660 | - |
| Hirtenberger 140-grain Nosler Soft Point (82200345) | 140 | 0.431 | - | 2,788 | - |
| Hirtenberger 140-grain Sierra SBT (82200454) | 140 | 0.403 | - | 2,788 | - |
| Nosler 140gr. E-Tip (40481) | 140 | 0.489 | - | 2,700 | 1.350 |
| PMC 140-grain Pointed Soft Point (7MA) | 140 | 0.431 | - | 2,600 | - |
| Remington 140-grain Pointed Soft Point Core-Lokt (R7MSR1) | 140 | 0.390 | - | 2,660 | - |
| Sellier & Bellot 140gr. FMJ (V330972) | 140 | 0.438 | - | 2,621 | - |
| Sellier & Bellot 140gr. SP (V330902) | 140 | 0.210 | - | 2,650 | - |
| Winchester 145-grain Power-Point (X7MM1) | 145 | 0.355 | - | 2,660 | - |
| Norma 150-grain Soft Point (17002) (Discontinued) | 150 | 0.421 | - | 2,690 | - |
| PMP 150gr. SP | 150 | 0.399 | - | 2,493 | - |
| Norma 156gr. Oryx (20170012) | 156 | 0.330 | - | 2,641 | - |
| Sellier & Bellot 158gr. HPC (V330922) | 158 | 0.448 | - | 2,484 | - |
| RWS 162gr. ID Classic (211 85 13) | 162 | 0.325 | - | 2,624 | - |
| Geco 165gr. Softpoint (2318561) | 165 | 0.360 | - | 2,542 | - |
| PMP 170gr. SP | 170 | 0.412 | - | 2,428 | - |
| RWS 173gr. HMK (211 73 20) | 173 | 0.383 | - | 2,526 | - |
| Sellier & Bellot 173gr. SPCE (V330912) | 173 | 0.362 | - | 2,379 | - |
| Federal 175-grain Hi-Shok Soft Point (7A) | 175 | 0.272 | - | 2,440 | - |
| Hirtenberger 175-grain Nosler SP (82200349) | 175 | 0.471 | - | 2,494 | - |
| PMC 175-grain Soft Point (7MB) | 175 | 0.388 | - | 2,400 | - |
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.