.300 Blackout vs 7.62x39mm

Part of our full caliber comparison chart — energy, drop and recoil for every rifle caliber side by side.

The .300 Blackout vs 7.62x39mm comparison examines two intermediate cartridges designed for different roles. The 7.62x39mm (123gr SP at 2,365 fps) produces 1,130 ft-lbs at 100 yards, outpacing the .300 Blackout's (150gr at 1,900 fps) 982 ft-lbs with supersonic loads. Both produce mild recoil: the .300 Blackout at 7.04 ft-lbs and the 7.62x39mm at 8.22 ft-lbs. The .300 Blackout fits standard AR-15 lowers and suppresses well with subsonic loads, while the 7.62x39mm has a long record of reliability in AK-pattern rifles.

Ammunition Parameters

.300 Blackout Parameters (Reference Load)

Bullet Type:
Extreme Point Polymer Tip
Bullet Weight:
150 grains
Muzzle Velocity:
1900 fps
Ballistic Coefficient:
0.392
Zero Range:
100 yards
Drag Function:
G1
Sight Height:
1.5 inches

7.62x39mm Parameters (Reference Load)

Bullet Type:
SP
Bullet Weight:
123 grains
Muzzle Velocity:
2365 fps
Ballistic Coefficient:
0.244
Zero Range:
100 yards
Drag Function:
G1
Sight Height:
1.5 inches

.300 Blackout vs 7.62x39mm Ballistics Chart

Comparing bullet drop at various ranges between .300 Blackout and 7.62x39mm.

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Want to calculate exact trajectories for these calibers with your specific loads?

.300 Blackout vs 7.62x39mm Energy Comparison

Comparing the muzzle energy and energy retention at various distances between .300 Blackout and 7.62x39mm.

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.300 Blackout vs 7.62x39mm Recoil

Comparing recoil energy and impulse between .300 Blackout and 7.62x39mm.

.300 Blackout Recoil (Reference Load)

Bullet Weight:
150.0 gr
Bullet Velocity:
1900.0 fps
Powder Charge:
16 gr
Firearm Weight:
6 lbs
Recoil Impulse:
1.62 lbs·sec
Recoil Velocity:
8.69 fps
Recoil Energy:
7.04 ft·lbf

7.62x39mm Recoil (Reference Load)

Bullet Weight:
123.0 gr
Bullet Velocity:
2365.0 fps
Powder Charge:
27.0 gr
Firearm Weight:
7.0 lbs
Recoil Impulse:
1.89 lbs·sec
Recoil Velocity:
8.69 fps
Recoil Energy:
8.22 ft·lbf
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Notes:

  • Recoil calculations based on bullet weight, velocity, powder charge, and firearm weight
  • Recoil energy indicates the felt force when firing the weapon
  • Recoil impulse represents momentum transfer during firing
  • Actual felt recoil can vary based on grip, stance, and firearm design

.300 Blackout vs 7.62x39mm Velocity

Velocity decay from muzzle to 500 yards for .300 Blackout and 7.62x39mm.

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.300 Blackout vs 7.62x39mm Average Cost

Comparing cost per round and training affordability between .300 Blackout and 7.62x39mm.

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