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.243 Winchester vs .300 Blackout

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

Reviewing the .243 Winchester vs .300 Blackout comparison reveals two cartridges with fundamentally different design philosophies and performance characteristics. The .243 Winchester (95gr Extreme Point at 3100 fps) delivers substantially higher energy, maintaining 1855 ft-lbs at 50 yards compared to the .300 Blackout's (150gr Extreme Point at 1900 fps) 1088 ft-lbs. The recoil comparison favors the .300 Blackout, generating 7.04 ft-lbs of recoil energy versus the .243's 13.19 ft-lbs. The .243's high-velocity approach provides nearly double the energy retention, making it more suitable for longer-range hunting where the .300 Blackout's shorter effective range becomes limiting. Remember that performance varies considerably with different ammunition selections and firearm platforms, so these figures represent typical hunting loadings rather than definitive performance benchmarks.

Ammunition Parameters

.243 Winchester Parameters (Reference Load)

Bullet Type:
Extreme Point Polymer Tip
Bullet Weight:
95 grains
Muzzle Velocity:
3100 fps
Ballistic Coefficient:
0.363
Zero Range:
100 yards
Drag Function:
G1
Sight Height:
1.5 inches

.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

.243 Winchester vs .300 Blackout Ballistics Chart

Comparing bullet drop at various ranges between .243 Winchester and .300 Blackout.

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.243 Winchester vs .300 Blackout Energy Comparison

Comparing the muzzle energy and energy retention at various distances between .243 Winchester and .300 Blackout.

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.243 Winchester vs .300 Blackout Recoil

Comparing recoil energy and impulse between .243 Winchester and .300 Blackout.

.243 Winchester Recoil (Reference Load)

Bullet Weight:
95.0 gr
Bullet Velocity:
3100.0 fps
Powder Charge:
41 gr
Firearm Weight:
6 lbs
Recoil Impulse:
2.22 lbs·sec
Recoil Velocity:
11.89 fps
Recoil Energy:
13.19 ft·lbf

.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
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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

.243 Winchester vs .300 Blackout Velocity

Velocity decay from muzzle to 500 yards for .243 Winchester and .300 Blackout.

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.243 Winchester vs .300 Blackout Average Cost

Comparing cost per round and training affordability between .243 Winchester and .300 Blackout.

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Cheapest .300 Blackout Deals

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