Description

DESCRIPTION

Winchester .223 Rem. Ammunition is the brand we know and trust. Winchester “Born Here Built Here” .223 Rem. ammunition is loaded using the highest quality components and each round is inspected for perfection. Featuring Winchester premium brass, these 55 Grain FMJ rounds will feed flawlessly. Buy 10mm ammo online Kentucky, 10mm ammo for sale Texas, 10mm bulk ammo, full power 10mm ammo, underwood ammo 10mm

20 Round Box

Features and Specifications:
Caliber: .223 Remington
Bullet Type: Full Metal Jacket (FMJ)
Bullet Weight: 55 Grains
Rounds: 500 Rounds per Box
Muzzle Velocity: 3240
Muzzle Energy: 1282 ft/lbs
Jacket Material: Copper
Core Material: Lead
Ballistic Coefficient: 0.255
Casing: Brass

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In 1980, the 223 Remington was transformed into a new cartridge and designated 5.56×45mm NATO (SS109 or M855). This new round uses a 62-gr full metal jacket bullet with a 7-grain steel core for better penetration against lightly armored targets, specifically to meet the NATO requirement that the bullet be able to penetrate through one side of a World War II U.S. 10mm ammo for sale Texas

M1 helmet at 800 m (which was also the requirement for the 7.62mm NATO). It had a slightly lower muzzle velocity than its predecessor, but better long-range performance due to higher sectional density and a superior drag coefficient. This requirement made the 5.56mm NATO round less capable of fragmentation than the 223 Remington and thus it was considered more humane. 10mm bulk ammo

Dimensions “>

The external dimensional specifications of 223 Remington and 5.56×45mm NATO brass cases are nearly identical. The cases tend to have similar case capacity when measured (case capacities have been observed to vary by as much as 2.6 grains (0.17 ml), although the shoulder profile and neck length are not the same and 5.56×45mm NATO cartridge cases tend be slightly thicker to accommodate higher chamber pressures. full power 10mm ammo

When handloaded, care is taken to look for pressure signs as 5.56×45mm NATO cases may produce higher pressures with the same type of powder and bullet as compared to 223 Remington cases. Sierra provides separate loading sections for 223 Remington and 5.56×45mm NATO and also recommends different loads for bolt-action rifles as compared to semiautomatic rifles. underwood ammo 10mm