Hunting
8×57 IRS / 11.7 g (180 gr) Naturalis
Product information
Product trajectory
Impact point above or below line of sight (Scope 40 mm above bore line)
Metric
Imperial
Crosswind is 4 m/s.
Trajectory
| Sight-in | 100 m | 200 m | 300 m |
|---|---|---|---|
| 100 | 0 mm | -144 mm | -526 mm |
| 163 GEE | 40 mm | -64 mm | -406 mm |
Velocity
| 0 m | 100 m | 200 m | 300 m |
|---|---|---|---|
| 805 m/s | 722 m/s | 643 m/s | 570 m/s |
Energy
| 0 m | 100 m | 200 m | 300 m |
|---|---|---|---|
| 3791 J | 3054 J | 2422 J | 1900 J |
Crosswind drift
| 0 m | 100 m | 200 m | 300 m |
|---|---|---|---|
| 0 mm | 28 mm | 117 mm | 281 mm |
Crosswind is 4 m/s.
Crosswind is 4 m/s.
Trajectory
| Sight-in | 100 yd | 200 yd | 300 yd |
|---|---|---|---|
| 100 | 0 in | -5 in | -17 in |
| 174 PBR | 2 in | -1 in | -12 in |
Velocity
| 0 yd | 100 yd | 200 yd | 300 yd |
|---|---|---|---|
| 2641 fps | 2393 fps | 2154 fps | 1930 fps |
Energy
| 0 yd | 100 yd | 200 yd | 300 yd |
|---|---|---|---|
| 2796 ft.-lbs. | 2296 ft.-lbs. | 1860 ft.-lbs. | 1493 ft.-lbs. |
Crosswind drift
| 0 yd | 100 yd | 200 yd | 300 yd |
|---|---|---|---|
| 0 in | 1 in | 4 in | 17 in |
Crosswind is 4 m/s.
8×57 IRS loaded with the 11.7 g (180 gr) Naturalis lead-free copper bullet – The wild boar stopper in driven hunts
The 8×57 IRS cartridge was born at the same time as its rimless brother 8×57 IS. The original idea was to develop a similar cartridge for the breech break combination guns like double rifles, drillings and vierlings. The other difference to the 8 x 57 IS round is the lower maximum pressure level which has been set for this caliber to 330 MPa. Throughout the years, Lapua’s 8×57 IRS ammunition has earned its success and reputation as a powerful wild boar stopper in driven hunts. The 8×57 IRS cartridge comes factory loaded with the 11.7 g / 180 gr Naturalis® bullet.