7x64 Brenneke ballistic coefficient chart
G1 and G7 ballistic coefficients for 47 7x64 Brenneke factory loads from 120 to 178 grains, with the manufacturer's muzzle velocity and, where published, bullet length.
| Load | Weight (gr) | G1 BC | G7 BC | Velocity (fps) | Length (in) |
|---|---|---|---|---|---|
| Sako 120gr. GAMEHEAD (121B) | 120 | 0.322 | - | 3,067 | - |
| RWS 123.5gr KS (211 75 68) | 124 | 0.290 | - | 3,182 | - |
| Hasler 125gr. Ariete | 125 | 0.380 | - | 3,103 | - |
| Geco 126.5gr. Zero (2318819) | 127 | 0.274 | - | 3,077 | - |
| PPU 139gr. SP (A-064) | 139 | 0.359 | - | 2,854 | - |
| Barnes 140gr. VOR-TX (21573) | 140 | 0.394 | - | 2,960 | - |
| Geco 140gr. Star (2420977) | 140 | 0.210 | - | 3,035 | - |
| Hirtenberger 140-grain Nosler SP (82200357) | 140 | 0.398 | - | 2,920 | - |
| Hirtenberger 140-grain Sierra SBT (82200442) | 140 | 0.367 | - | 2,920 | - |
| Hornady 140gr. GMX Superformance International (8157) | 140 | 0.468 | - | 3,116 | - |
| Norma 140-grain Nosler BST (17052) | 140 | 0.445 | - | 2,854 | - |
| Norma 140gr. ECOSTRIKE (20171182) | 140 | 0.443 | - | 2,986 | - |
| RWS 140gr. HIT (2318846) | 140 | 0.409 | - | 2,952 | - |
| Sellier & Bellot 140gr. FMJ (V331162) | 140 | 0.401 | - | 2,772 | - |
| Sellier & Bellot 140gr. SP (V331102) | 140 | 0.215 | - | 2,808 | - |
| PMP 150gr. SP | 150 | 0.368 | - | 2,822 | - |
| RWS 150gr. SPEED TIP PRO (2407006) | 150 | 0.479 | - | 3,051 | - |
| Sako 150gr. ARROWHEAD II (407B) | 150 | 0.515 | - | 2,821 | - |
| Sako 150gr. POWERHEAD II (495B) | 150 | 0.450 | - | 2,821 | - |
| Blaser 154gr. CDP | 154 | 0.420 | - | 2,854 | - |
| RWS 154gr. DK (211 85 56) | 154 | 0.338 | - | 2,903 | - |
| Geco 155gr. Express (2317840) | 155 | 0.418 | - | 2,903 | - |
| Hirtenberger 155-grain ABC Bullet (82200359) | 155 | 0.290 | - | 2,690 | - |
| Lapua 156gr. Naturalis | 156 | 0.280 | - | 2,756 | 1.046 |
| Norma 156gr. Oryx (20170532) | 156 | 0.330 | - | 2,789 | - |
| Sellier & Bellot 158gr. HPC (V331122) | 158 | 0.482 | - | 2,638 | - |
| RWS 159gr. EVO (231 54 31) | 159 | 0.399 | - | 2,887 | - |
| Norma 160gr. TIPSTRIKE (20171152) | 160 | 0.510 | - | 2,953 | - |
| Speer 160-grain Grand Slam (24521) | 160 | 0.388 | - | 2,600 | - |
| RWS 162gr. ID Classic (211 85 80) | 162 | 0.325 | - | 2,887 | - |
| RWS 162gr. KS (211 84 75) | 162 | 0.381 | - | 2,887 | - |
| Geco 165gr. Softpoint (2123312) | 165 | 0.360 | - | 2,788 | - |
| Norma 165gr. Bondstrike (20171532) | 165 | 0.632 | 0.313 | 2,854 | - |
| Geco 170gr. Plus (2317841) | 170 | 0.375 | - | 2,788 | - |
| Norma 170gr. Oryx (20170202) | 170 | 0.324 | - | 2,756 | - |
| Norma 170gr. Plastic Point (20170192) | 170 | 0.378 | - | 2,756 | - |
| Norma 170gr. Vulcan (20170182) | 170 | 0.353 | - | 2,756 | - |
| PMC 170-grain Soft Point (7X64A) | 170 | 0.393 | - | 2,625 | - |
| PMP 170gr. SP | 170 | 0.412 | - | 2,625 | - |
| Sako 170gr. HAMMERHEAD (216B) | 170 | 0.371 | - | 2,608 | - |
| RWS 173gr. HMK (211 75 17) | 173 | 0.383 | - | 2,788 | - |
| RWS 173gr. TMR (211 75 41) | 173 | 0.301 | - | 2,624 | - |
| Sellier & Bellot 173gr. SPCE (V331112) | 173 | 0.372 | - | 2,526 | - |
| Hirtenberger 175-grain Nosler SP (82200358) | 175 | 0.456 | - | 2,658 | - |
| Hirtenberger 175-grain Sierra SBT (82200466) | 175 | 0.646 | - | 2,625 | - |
| Speer 175-grain Grand Slam (24522) | 175 | 0.466 | - | 2,550 | - |
| RWS 177.5gr ID Classic (211 85 99) | 178 | 0.356 | - | 2,788 | - |
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.