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.223 Ackley Improved
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Caliber Specifications:
Caliber: | .223 Ackley Improved |
Bullet Diameter: | 0.224" | 5.69mm |
Primer Size: | Small Rifle (SR) |
Max. Case Length: | 1.760" | 44.70mm |
Max. Cartridge Length / OAL: | 2.260" | 57.40mm |
Max. Standardized Pressure: | 55114 psi | 3800 bar |
Case Capacity: | 32.4 Grains of Water | 2.10 cm3 |
CID: | CID_136 |
Last updated: | 2/20/2025 |
- The .223 AI is based on the .223 Rem but has been modified by gunsmith P.O. Ackley to have a steeper shoulder angle (typically 40 degrees) and less body taper. This design allows for more internal case capacity, which can hold more powder and potentially deliver higher velocities.
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Most popular powders from our community members for caliber .223 Ackley Improved:
Weight vs. Velocity - Suitable Bullets for this Caliber
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Barrel Length Variation vs. Velocity - by Bullet Weight
.223 Ackley Improved load data available with the following bullets:
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