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AR-15Bolt face: 5.56/.223

.223 Remington Ballistics

The civilian sibling of 5.56 NATO. Slightly lower pressure and identical external dimensions. Rifles marked .223 only should not be used with 5.56 ammunition. Popular for target shooting, varmint hunting, and predator control.

Cartridge Specifications

SAAMI Max Pressure
55,000 psi
Bullet Diameter
0.224 in
Case Length
1.76 in
Overall Length
2.26 in
Parent Case
.222 Remington Magnum
Bolt Face
5.56/.223
Min Barrel
10.5 in
Platform
AR-15

Common Bullet Weights and Types

SP 55 grBTHP 68 grBTHP 75 grV-MAX 55 gr

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.

LoadZero100 yd200 yd300 yd400 yd500 yd
55 gr SP200 yd1.50-7.3-21.5-44.2
68 gr BTHP200 yd1.70-7.6-21.8-43.5
75 gr BTHP200 yd1.90-8.2-23.3-46.2

Wind Drift at 10 mph Crosswind

Drift in inches at a 90 degree full value wind. Estimated from muzzle velocity and G1 ballistic coefficient.

Load100 yd200 yd300 yd400 yd500 yd
55 gr SP6.813.620.527.334.1
68 gr BTHP5.410.816.221.627
75 gr BTHP5.110.115.220.225.3

Effective Range by Application

Self-defense0 to 200 yd
Varmint hunting0 to 400 yd
Competition0 to 600 yd

Barrel Twist Rate Recommendations

40 to 55 gr1:9 or 1:12
55 to 69 gr1:8 or 1:9
69 to 77 gr1:7 or 1:8

Published Load Data

WeightTypeBarrelMV (fps)ME (ft-lb)BC (G1)Source
55 grSP16 in3,0501,1350.235Hornady Custom .223 55 gr SP published load data
55 grSP18 in3,1201,1890.235Hornady Custom .223 55 gr SP published load data
55 grSP20 in3,2401,2820.235Hornady Custom .223 55 gr SP published specification 20"
68 grBTHP16 in2,8001,1840.355Hornady Match .223 68 gr BTHP load data
68 grBTHP18 in2,8501,2270.355Hornady Match .223 68 gr BTHP load data
68 grBTHP20 in2,9601,3230.355Hornady Match .223 68 gr BTHP published specification 20"
75 grBTHP16 in2,6501,1700.395Hornady Superformance Match 75 gr BTHP load data
75 grBTHP18 in2,7201,2320.395Hornady Superformance Match 75 gr BTHP load data
75 grBTHP20 in2,7901,2960.395Hornady Superformance Match 75 gr BTHP published specification 20"

Data Disclaimer

Ballistic data is approximate and varies by ammunition lot, barrel condition, altitude, and temperature. Data sourced from Hornady Custom .223 55 gr SP published load data; Hornady Custom .223 55 gr SP published specification 20"; Hornady Match .223 68 gr BTHP load data. 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 .223 Remington.