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223 Once Fired Brass Tumbled

Availability:  55250
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500pcs for a 6.5¢
1,000pcs for a 6¢
5,000pcs for a 5.3¢
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223 / 5.56 Once Fired Brass Tumbled and cleaned to a shine.
All defective brass was sorted out.


------------------223 / 5.56 Cartridge information ---------------------------

Read full article at wikipedia http://en.wikipedia.org/wiki/.223_Remington

Specifications
Parent case .222 Remington
Case type Rimless, bottleneck
Bullet diameter .224 in (5.7 mm)
Neck diameter .253 in (6.4 mm)
Shoulder diameter .354 in (9.0 mm)
Base diameter .376 in (9.6 mm)
Rim diameter .378 in (9.6 mm)
Rim thickness .045 in (1.1 mm)
Case length 1.76 in (45 mm)
Overall length 2.26 in (57 mm)
Rifling twist 1 in 12 inch (military style rifles use 1:7 to 1:10 to stabilize longer bullets)
Primer type Small rifle
Maximum pressure (SAAMI) 55,000 psi (380 MPa)
Maximum pressure (CIP) 62,366 psi (430.00 MPa)
Maximum CUP 52000 CUP
Ballistic performance
Bullet weight/type Velocity Energy
36 gr (2 g) JHP 3,750 ft/s (1,140 m/s) 1,124 ft·lbf (1,524 J)
55 (3.5 g) Nosler ballistic tip 3,240 ft/s (990 m/s) 1,282 ft·lbf (1,738 J)
60 (3.9 g) Nosler partition 3,160 ft/s (960 m/s) 1,330 ft·lbf (1,800 J)
69 (4.48 g) BTHP 2,950 ft/s (900 m/s) 1,333 ft·lbf (1,807 J)
77 (5 g) BTHP 2,750 ft/s (840 m/s) 1,293 ft·lbf (1,753 J)
Test barrel length: 24 inches (61 cm)
Source(s): Federal Cartridge[1]
.223 Remington.jpg

.223 Remington versus 5.56 mm NATO[edit]

These 5.56x45mm NATO cartridges are identical in appearance to .223 Remington. They are, however, not completely interchangeable.

While the 5.56mm NATO and .223 Remington cartridges and chamberings are very similar, they are not identical.[8]

The NATO specification allows a higher chamber pressure. NATO EPVAT test barrels made for 5.56mm NATO measure chamber pressure at the case mouth, as opposed to the location used by the United States civil standards organization SAAMI. The piezoelectric sensors or transducers NATO and SAAMI use to conduct the actual pressure measurements also differ. This difference in measurement method accounts for upwards of 137.9 megapascals (20,000 psi) difference in pressure measurements. This means the NATO EPVAT maximum service pressure of 430 megapascals (62,000 psi) for 5.56mm NATO, is reduced by SAAMI to 379.21 megapascals (55,000 psi) for .223 Remington.[7] In contrast to SAAMI, the other main civil standards organization C.I.P. defines the maximum service and proof test pressures of the .223 Remington cartridge equal to the 5.56mm NATO.

Read full article at wikipedia http://en.wikipedia.org/wiki/.223_Remington


  • Availability: 55250
  • Model: 223/556-TC

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