300 Blackout Ballistics Calculator
Select a common 300 Blackout load below to generate a full ballistics table, or use the calculator with your own data.
Popular 300 Blackout Load Presets
125gr Sierra OTM
- Muzzle Velocity: 2215 fps
- BC (G1): 0.338
- Use: Home defense & hunting
220gr Sierra MatchKing (subsonic)
- Muzzle Velocity: 1030 fps
- BC (G1): 0.629
- Use: Suppressed shooting
300 Blackout Drop Chart — Reference Data
125gr Sierra OTM — 2215 fps MV — 50 Yard Zero
| Range (yds) | Drop (in) | MOA | Velocity (fps) | Energy (ft-lb) |
|---|---|---|---|---|
| 50 | 0.0 | -0.0 | 2095 | 1218 |
| 100 | -0.5 | 0.5 | 1979 | 1087 |
| 150 | -3.2 | 2.0 | 1867 | 967 |
| 200 | -8.4 | 4.0 | 1759 | 859 |
| 250 | -16.4 | 6.3 | 1656 | 761 |
| 300 | -27.6 | 8.8 | 1559 | 674 |
| 350 | -42.4 | 11.6 | 1466 | 597 |
| 400 | -61.2 | 14.6 | 1380 | 529 |
| 450 | -84.6 | 17.9 | 1301 | 470 |
| 500 | -113.1 | 21.6 | 1230 | 420 |
*Reference data calculated at sea level, 59°F, 50% humidity, no wind.
300 Blackout Ballistic Performance
Supersonic Performance
With 110-125gr supersonic loads at 2200-2375 fps, the 300 Blackout is effective to approximately 300 yards for hunting and defensive use. The 30-caliber bullet provides significantly more energy than 5.56 NATO at close to medium range, making it a popular choice for short-barreled rifles and AR-platform builds where terminal performance matters.
Subsonic & Suppressed Use
The 300 Blackout was designed to excel with a suppressor. Heavy 220gr subsonic loads at 1010 fps keep the bullet below the speed of sound, eliminating the supersonic crack. While effective range is limited to 100-150 yards for subsonic loads, the combination of suppressor compatibility and AR-15 magazine compatibility makes it uniquely versatile.
300 Blackout FAQ
What is the effective range of 300 Blackout?
With supersonic loads (110-125gr), the 300 Blackout is effective to approximately 300 yards. Subsonic 220gr loads are best used within 100-150 yards. The cartridge was designed for close to medium-range engagements, not long-range precision.
Is 300 Blackout good for deer hunting?
Yes, with supersonic 110-130gr expanding bullets the 300 Blackout is effective on deer at distances under 200 yards. It delivers 30-caliber terminal performance with low recoil, making it excellent for hunting from blinds or stands where shots are typically close.
How does 300 Blackout compare to 223 Remington?
The 300 Blackout delivers significantly more energy at close range with its larger 30-caliber bullet, while 223 Remington shoots flatter and has better performance past 300 yards. The 300 BLK excels suppressed and in short barrels; the 223 is better for longer range. See our 300 BLK vs 223 Rem comparison.
Can you use 300 Blackout in a 5.56 AR-15?
The 300 Blackout uses the same bolt, magazines, and lower receiver as a 5.56 AR-15 — only the barrel needs to be swapped. However, never load 300 Blackout into a 5.56 chamber, as a 300 BLK round can partially chamber in a 5.56 barrel with catastrophic results.
Manufacturer Resources
Verify ballistic coefficients and load data from the bullet manufacturers:
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