Winchester Varmint X .223 Remington 55gr Polymer Tip Ammunition /20

Winchester Varmint X .223 Remington 55gr Polymer Tip Ammunition /20

Varmint X is designed specifically for the demands of predator and varmint hunters. The sleek, polymer-tipped bullets are explosive upon impact. Varmint X combines the proven dependability Winchester is known for with today's latest technology, providing hunters the ammunition of choice for pursuing everything from prairie dogs to coyotes.

Specifications:
Manufacturer: Winchester
Brand: Varmint-X
Caliber: 223 Remington
Weight: 55gr
Type: Polymer Tip
MPN: X223P
Rounds Per Box: 20

Ballistics:
Muzzle Velocity: 3240 fps
Muzzle Energy: 1282 ft/lb

Features:
Polymer Tip
Maximizes long range performance and promotes rapid expansion

Alloy Jacket
Thin jacket with engineered sidewall profile for explosive fragmentation

Lead Core
Designed for rapid fragmentation

About the Manufacturer:
The company who brought to life "the Gun that Won the West" is the same company who today continues to supply sportsmen with the best sporting ammunition in the world.Founded in 1866, Winchester is one of the world's most widely recognized and respected brand names.

For more than 140 years, the name "Winchester" has come to mean many things to many people. To most folks it means ammunition and the Gun that Won the West. For many others, however, it also rekindles images of fine hand tools and cutlery, fishing tackle, the classic artwork and hunting traditions.

To encourage the preservation of wildlife habitat, Winchester is a major sponsor of conservation organizations such as Ducks Unlimited and Quail Unlimited. And it's a major backer of sporting clays and other clay target shooting games.

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)