8.6 Blackout Ballistics
The 8.6 Blackout from Q and Faxon delivers big-bore subsonic performance from a short AR-10 platform. Designed specifically for suppressed shooting with heavy .338 caliber projectiles.
Cartridge Specifications
Common Bullet Weights and Types
Muzzle Velocity by Barrel Length
Muzzle Energy by Barrel Length
Bullet Drop Table
Values in inches. 16-inch barrel reference data. Positive values rise above line of sight, negative values fall below.
| Load | Zero | 100 yd | 200 yd | 300 yd | 400 yd | 500 yd |
|---|---|---|---|---|---|---|
| 200 gr TTSX | 200 yd | 3 | 0 | -13 | -38 | -78 |
| 300 gr Subsonic | 100 yd | 0 | -18 | -58 | - | - |
Wind Drift at 10 mph Crosswind
Drift in inches at a 90 degree full value wind. Estimated from muzzle velocity and G1 ballistic coefficient.
| Load | 100 yd | 200 yd | 300 yd | 400 yd | 500 yd |
|---|---|---|---|---|---|
| 200 gr TTSX | 6.5 | 13 | 19.6 | 26.1 | 32.6 |
| 300 gr Subsonic | 11.5 | 22.9 | 34.4 | 45.9 | 57.4 |
Effective Range by Application
Barrel Twist Rate Recommendations
Published Load Data
| Weight | Type | Barrel | MV (fps) | ME (ft-lb) | BC (G1) | Source |
|---|---|---|---|---|---|---|
| 200 gr | TTSX | 12 in | 2,200 | 2,149 | 0.35 | Q/Faxon 8.6 BLK 200gr supersonic published specs |
| 200 gr | TTSX | 16 in | 2,350 | 2,452 | 0.35 | Q/Faxon 8.6 BLK 200gr supersonic published specs |
| 300 gr | Subsonic | 12 in | 1,050 | 734 | 0.42 | Q/Faxon 8.6 BLK 300gr subsonic published specs |
| 300 gr | Subsonic | 16 in | 1,080 | 777 | 0.42 | Q/Faxon 8.6 BLK 300gr subsonic published specs |
Data Disclaimer
Ballistic data is approximate and varies by ammunition lot, barrel condition, altitude, and temperature. Data sourced from Q/Faxon 8.6 BLK 200gr supersonic published specs; Q/Faxon 8.6 BLK 300gr subsonic published specs. Always confirm zero and trajectory with your specific firearm.
Pick the right barrel
Twist rate should match the bullet weights you plan to shoot. See barrel steel grades, profiles, chamber types, and twist rate guidance on the barrel specs page, then jump into the builder to filter barrels chambered in 8.6 Blackout.