Ballistics calculator
Trajectory, energy and wind drift for factory or custom loads; compare up to 4. The link is shareable.
Selected loads
- Norma Oryx .270 Winchester 9.7 g
Setup and conditions
Air pressure is derived from altitude (ICAO standard atmosphere).
Optimal zero
- Norma Oryx .270 Winchester 9.7 g:Optimal zero (±4 cm): 173 m, no holdover needed out to 200 m.
Norma Oryx .270 Winchester 9.7 gv0 870 m/s · BC G1 0.373
| Range | Velocity | Energy | Path (cm) | MRAD | Wind drift (cm) | MRAD | Time |
|---|---|---|---|---|---|---|---|
| 0 m | 870 m/s | 3,671 J | -4.0 | 0.00 | 0.0 | 0.00 | 0.000 s |
| 25 m | 849 m/s | 3,494 J | -1.7 | -0.67 | 0.0 | 0.00 | 0.029 s |
| 50 m | 828 m/s | 3,325 J | -0.2 | -0.04 | 0.0 | 0.00 | 0.059 s |
| 75 m | 807 m/s | 3,162 J | 0.4 | 0.05 | 0.0 | 0.00 | 0.089 s |
| 100 m | 787 m/s | 3,005 J | 0.0 | 0.00 | 0.0 | 0.00 | 0.121 s |
| 125 m | 767 m/s | 2,855 J | -1.4 | -0.11 | 0.0 | 0.00 | 0.153 s |
| 150 m | 748 m/s | 2,711 J | -3.8 | -0.25 | 0.0 | 0.00 | 0.186 s |
| 175 m | 728 m/s | 2,572 J | -7.2 | -0.41 | 0.0 | 0.00 | 0.220 s |
| 200 m | 709 m/s | 2,439 J | -11.9 | -0.59 | 0.0 | 0.00 | 0.255 s |
| 225 m | 690 m/s | 2,311 J | -17.8 | -0.79 | 0.0 | 0.00 | 0.290 s |
| 250 m | 672 m/s | 2,189 J | -24.9 | -1.00 | 0.0 | 0.00 | 0.327 s |
| 275 m | 654 m/s | 2,072 J | -33.4 | -1.22 | 0.0 | 0.00 | 0.365 s |
| 300 m | 636 m/s | 1,959 J | -43.4 | -1.45 | 0.0 | 0.00 | 0.404 s |
Point-mass model with G1/G7 tables; real trajectories vary by rifle. Always zero and verify before hunting.