Prvi Partizan PPU 223 Remington 55gr SP Ammunition /20

Prvi Partizan PPU 223 Remington 55gr SP Ammunition /20

The soft point bullets featured in this round have a soft lead exposed nose to create a uniform mushroom through controlled expansion. This ammo is new product, non-corrosive, in boxer-primed, reloadable brass cases.

Specifications:
Manufacturer: Prvi Partizan
Brand: PPU
Caliber: 223 Remington
Weight: 55gr
Type: SP
MPN: PP223S
Rounds Per Box: 20

Ballistics:
Muzzle Velocity: 3248 fps
Muzzle Energy: 1283 ft/lb

Features:
- Use Type Varmint Hunting, Range Training, Deer Hunting
- Ammo Casing Brass
- Boxer Primer

About the Manufacturer
The story of Prvi Partizan starts at the beginning of the XX century. In 1927, the founder of the factory, Jakob Posinger, in cooperation with the army and the government of the Kingdom of Yugoslavia, moved his workshop from Kranj (Slovenia) to Uzice. After the purchase of machines, the workshop was equipped for the production of hunting rifles and pistol ammunition. It started work on 1st of May 1928 in facilities located in the "Stevan Nemanja" military barracks in Krcagovo. During the first two years 150 workers worked in the factory.
In 1935 the authorities of the town of Uzice decide to give mr. Posinger, as a present, land for the building of a new factory. The laying of the foundation stone on June 20th 1935 marked the construction of the first private factory of this kind in the Balkans. The official name of the factory was "Factory of Arms and Ammunition in Uzice" - FOMU.

In the beginning FOMU produced several different ammunition calibers including Central 7mm, 9mm, and 12mm; Browning 6.35mm, 7.65mm and 9mm, Serbian Nagant 7.62mm, hunting ammunition cases for smokeless powder, as well as single-barreled and double-barreled hunting rifles in calibers of 12, 16 and 20. In the following years the factory started production of military rifles in the 7.9mm calibers and ammunition for government 9mm Short Pistols. Also, military rifles were repaired in FOMU.

At the beginning of World War II the occupying forces heavily damaged the production facilities and destroyed the administrative building to the foundation. The town was liberated on September 24th 1941 and the arms factory started to work under the control of the Partisan military authorities. The ammunition production facilities and tool shop was moved to the underground tunnel safe of the National Bank and other production facilities were moved to plants in the town surroundings.

During that period Uzice was the only town in Yugoslavia, and possibly in Europe, in which an arms factory was working under occupation. It had a very important role in equipping units of the National Libearation Army and it was known for its production of "thin and long rifles" (partisan rifles) and hand grenades. The factory stopped working on November 22rd after an explosion caused by sabotage claimed the lives of more then 120 persons.

On September 5th 1947, the factory in Uzice was renamed "Prvi Partizan" and it became a state owned company.

At the end of 1970s company Prvi Partizan had started works on construction of new buildings and infrastructure. These caused enlarging capacities and introduction of new articles in production.

About the .223 Remington Cartridge
The .223 Remington or .223 Rem is a cartridge with almost the same external dimensions as the 5.56�45mm NATO military cartridge. The name is commonly pronounced either two-two-three or two-twenty-three. It is loaded with a 0.224-inch(5.56 mm) diameter jacketed bullet, with weights ranging from 40 to 90 grains(2.6 to 5.8 g), though the most common loading by far is 55 grains (3.6 g).While the external case dimensions are very similar, the .223 Remington and 5.56�45mm differ in both maximum pressure and chamber shape. The maximum and mean pressures for some varieties of the 5.56 (different cartridge designations have different standards) exceed the SAAMI maximum for the .223 Remington, and the methods for measuring pressures differ between NATO and SAAMI. The 5.56 chamber specification has also changed since its adoption, as the current military loading (NATO SS-109 or US M855) uses longer, heavier bullets than the original loading. This has resulted in a lengthening of the throat in the 5.56 chamber. Thus, while .223 Remington ammunition can be safely fired in a rifle chambered for 5.56�45mm NATO, firing 5.56 ammunition in a .223 Remington chamber may produce pressures in excess of even the 5.56 specifications due to the shorter throat.

223 Remington Cartridge Specifications
Parent case .222 Remington
Case type Rimless, bottleneck
Bullet diameter 0.224 in (5.7 mm)
Neck diameter 0.253 in (6.4 mm)
Shoulder diameter 0.354 in (9.0 mm)
Base diameter 0.376 in (9.6 mm)
Rim diameter 0.378 in (9.6 mm)
Rim thickness 0.045 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

223 Remington Cartridge Ballistic Performance
36 gr (2 g) JHP 3,750 ft/s (1,140 m/s) 1,124 ft�lbf (1,524 J)
55 gr(3.5 g) Nosler ballistic tip 3,240 ft/s (990 m/s) 1,282 ft�lbf (1,738 J)
60 gr(3.9 g) Nosler partition 3,160 ft/s (960 m/s) 1,330 ft�lbf (1,800 J)
69 gr(4.48 g) BTHP 2,950 ft/s (900 m/s) 1,333 ft�lbf (1,807 J)
77 gr(5 g) BTHP 2,750 ft/s (840 m/s) 1,293 ft�lbf (1,753 J)