Ballistics calculator
Trajectory, energy and wind drift for factory or custom loads; compare up to 4. The link is shareable.
Selected loads
- Norma Ecostrike 6,5×55 SE 7.8 g
Setup and conditions
Air pressure is derived from altitude (ICAO standard atmosphere).
Optimal zero
- Norma Ecostrike 6,5×55 SE 7.8 g:Optimal zero (±4 cm): 172 m, no holdover needed out to 199 m.
Norma Ecostrike 6,5×55 SE 7.8 gv0 860 m/s · BC G7 0.195
| Range | Velocity | Energy | Path (cm) | MRAD | Wind drift (cm) | MRAD | Time |
|---|---|---|---|---|---|---|---|
| 0 m | 860 m/s | 2,884 J | -4.0 | 0.00 | 0.0 | 0.00 | 0.000 s |
| 25 m | 840 m/s | 2,751 J | -1.7 | -0.66 | 0.0 | 0.00 | 0.029 s |
| 50 m | 820 m/s | 2,622 J | -0.2 | -0.04 | 0.0 | 0.00 | 0.060 s |
| 75 m | 800 m/s | 2,498 J | 0.4 | 0.05 | 0.0 | 0.00 | 0.090 s |
| 100 m | 781 m/s | 2,379 J | 0.0 | 0.00 | 0.0 | 0.00 | 0.122 s |
| 125 m | 762 m/s | 2,264 J | -1.4 | -0.11 | 0.0 | 0.00 | 0.154 s |
| 150 m | 743 m/s | 2,153 J | -3.8 | -0.26 | 0.0 | 0.00 | 0.188 s |
| 175 m | 724 m/s | 2,047 J | -7.4 | -0.42 | 0.0 | 0.00 | 0.222 s |
| 200 m | 706 m/s | 1,944 J | -12.1 | -0.61 | 0.0 | 0.00 | 0.257 s |
| 225 m | 688 m/s | 1,846 J | -18.1 | -0.80 | 0.0 | 0.00 | 0.293 s |
| 250 m | 670 m/s | 1,752 J | -25.4 | -1.01 | 0.0 | 0.00 | 0.329 s |
| 275 m | 653 m/s | 1,662 J | -34.0 | -1.24 | 0.0 | 0.00 | 0.367 s |
| 300 m | 636 m/s | 1,575 J | -44.0 | -1.47 | 0.0 | 0.00 | 0.406 s |
Point-mass model with G1/G7 tables; real trajectories vary by rifle. Always zero and verify before hunting.