.17 HMR ballistic coefficient chart
G1 and G7 ballistic coefficients for 16 .17 HMR factory loads from 16 to 20 grains, with the manufacturer's muzzle velocity and, where published, bullet length.
| Load | Weight (gr) | G1 BC | G7 BC | Velocity (fps) | Length (in) |
|---|---|---|---|---|---|
| Hornady 15.5gr. NTX | 16 | 0.115 | - | 2,525 | - |
| CCI 16gr. TNT Green HP (0951) | 16 | 0.091 | - | 2,500 | - |
| Browning 17gr. BPR Performance Rimfire (B195117050) | 17 | 0.125 | - | 2,550 | - |
| CCI 17gr. A17 Varmint Tip (949CC) | 17 | 0.129 | - | 2,650 | - |
| CCI 17gr. TNT JHP (0053) | 17 | 0.101 | - | 2,550 | - |
| CCI 17gr. V-Max (0049) | 17 | 0.125 | - | 2,550 | - |
| CCI 17gr. VNT (959CC) | 17 | 0.125 | - | 2,650 | - |
| Federal 17gr. Speer TNT Hollow Point (P770) | 17 | 0.110 | - | 2,530 | - |
| Federal 17gr. V-Max (P771) | 17 | 0.125 | - | 2,530 | - |
| Hornady 17gr. V-MAX (0049) | 17 | 0.125 | - | 2,550 | - |
| Remington 17gr. AccuTip-V (PR17HM1) | 17 | 0.127 | - | 2,550 | - |
| Winchester 17gr. Varmint HV (S17HMR) | 17 | 0.128 | - | 2,550 | - |
| CCI 20gr. FMJ (0055) | 20 | 0.132 | - | 2,375 | - |
| CCI 20gr. Gamepoint JSP (0052) | 20 | 0.126 | - | 2,375 | - |
| Hornady 20gr. HP XTP | 20 | 0.125 | - | 2,375 | - |
| Winchester 20gr. JHP (X17HMR1) | 20 | 0.132 | - | 2,375 | - |
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. For a ready-made drop table, see the .17 HMR ballistics chart .