8x57 JRS ballistic coefficient chart
G1 and G7 ballistic coefficients for 27 8x57 JRS factory loads from 123 to 220 grains, with the manufacturer's muzzle velocity and, where published, bullet length.
| Load | Weight (gr) | G1 BC | G7 BC | Velocity (fps) | Length (in) |
|---|---|---|---|---|---|
| Norma 123gr. FMJ (20180162) | 123 | 0.191 | - | 2,559 | 0.750 |
| Geco 139gr. Zero (2318948) | 139 | 0.226 | - | 2,988 | - |
| RWS 139gr. EVO Green (2318326) | 139 | 0.299 | - | 2,838 | - |
| Norma 160gr. ECOSTRIKE (20180252) | 160 | 0.430 | - | 2,690 | - |
| Norma 160gr. ECOSTRIKE (20180252) | 160 | 0.430 | - | 2,690 | - |
| RWS 160gr. HIT (2319207) | 160 | 0.338 | - | 2,651 | - |
| Sako 175gr. GAMEHEAD (121F) | 175 | 0.374 | - | 2,542 | - |
| Hornady 180gr. GMX Superformance International (82296) | 180 | 0.420 | - | 2,450 | - |
| Lapua 180gr. Naturalis (N318010) | 180 | 0.357 | 0.179 | 2,625 | - |
| RWS 180gr. Speed Tip Pro (2410015) | 180 | 0.394 | - | 2,444 | - |
| RWS 180.5gr DK (212 35 09) | 181 | 0.282 | - | 2,493 | 1.110 |
| Geco 185gr. Softpoint (2123398) | 185 | 0.245 | - | 2,542 | - |
| RWS 186.7gr HMK (211 79 83) | 187 | 0.326 | - | 2,526 | 1.180 |
| Blaser 196gr. CDP | 196 | 0.388 | - | 2,460 | - |
| Geco 196gr. Plus (2317846) | 196 | 0.346 | - | 2,378 | - |
| Norma 196gr. Alaska (20180182) | 196 | 0.345 | - | 2,395 | 1.094 |
| Norma 196gr. Oryx (20180102) | 196 | 0.331 | - | 2,395 | 1.138 |
| Norma 196gr. Vulcan (20180192) | 196 | 0.345 | - | 2,395 | 1.149 |
| PPU 196gr. SP (A-475) | 196 | 0.356 | - | 2,395 | 1.181 |
| RWS 196gr. TMR (211 80 09) | 196 | 0.288 | - | 2,395 | 1.023 |
| Sellier & Bellot 196gr. HPC (V331822) | 196 | 0.527 | - | 2,486 | 1.378 |
| Sellier & Bellot 196gr. SPCE (V331902) | 196 | 0.338 | - | 2,381 | 1.187 |
| RWS 197.5gr ID Classic (211 92 34) | 198 | 0.360 | - | 2,460 | 1.313 |
| PPU 200gr. FMJ BT (A-564) | 200 | 0.509 | - | 2,362 | - |
| Sako 200gr. HAMMERHEAD (201F) | 200 | 0.253 | - | 2,362 | - |
| RWS 200.6gr EVO (231 62 00) | 201 | 0.350 | - | 2,362 | 1.240 |
| Sellier & Bellot 220gr. SBT (V331942) | 220 | 0.500 | 0.251 | 2,286 | 1.388 |
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.