Remington

In 1964 the .223 Remington was adopted as the 5.56mm Ball Cartridge M193, the new U.S. Military rifle cartridge. The .223 Remington is the commercial version of the 5.56mm. Documentation shows several variations in chamber dimensions, principally in the chamber throat, have occurred since the 5.56 cartridge was adopted, the latest version to accommodate the heavier SS109 projectile.

The data presented here was developed in a barrel chambered to commercial .223 Remington specifications and this data may be used in firearms with military specification chambers. SAAMI has cautioned that some 5.56 ammo will produce excessive pressures when fired in rifles chambered for the .223 Remington cartridge.

In the arena of NRA High Power Rifle competition, and particularly in the Service Rifle category, more and more AR-15 rifles are being used. We have included data for the 69 and 80 grain bullets for those shooters.

.223 REMINGTON

Gun

WILSON

Max Length

1.760"

Barrel Length

24"

Trim Length

1.740"

Primer

REM 7°

OAL Max

2.260"

Case

REM

OAL Min

2.165"

START LOADS

MAXIMUM LOADS

Cartridge

Bullet

Powder

Grains

Vel.

Powder

Grains

Vel.

C.U.P.

Length Comment

IMI 55 FMJ

1680

18.5

2691

1680

20.5

3058

50,000

2.230"

2015

22.5

2887

2015

25.0

3281

49,800

2230

23.4

2830

2230

26.0

3216

50,300

2460

23.9

2843

2460

26.5

3231

49,200

2495

23.6

2878

2495

26.2

3271

51,100

Compressed

2520

24.8

2837

2520

27.5

3224

43,300

Compressed

SRA 69 HPBT

2015

20.7

2567

2015

23.0

2917

48,400

2.250"

2230

22.1

2578

2230

24.5

2929

51,300

2460

22.2

2632

2460

24.7

2991

51,800

2495

22.5

2608

2495

25.0

2964

49,800

2520

24.3

2679

2520

27.0

3044

48,200

START LOADS

MAXIMUM LOADS

Cartridge

Bullet

Powder

Grains

Vel.

Powder

Grains

Vel.

C.U.P.

Length Comment

SRA 80 HPBT

2015

19.8

2382

2015

22.0

2707

49,000

2.450" *

2230

21.2

2424

2230

23.5

2754

49,100

2460

21.6

2453

2460

24.0

2788

49,500

2495

21.2

2453

2495

23.5

2788

51,600

2520

22.5

2460

2520

25.0

2796

49,700

* Over SAAMI Maximum OAL

* Over SAAMI Maximum OAL

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