1000 Rounds of 62gr FMJ 5.56x45 Ammo by Lake City
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These are the famous M855 green-tipped rounds known as Penetrator rounds. There’s a fair bit of misinformation out there about this ammunition, so here’s the scoop – or the true strength, as it were. The Penetrator is a mil-spec round categorized for use against personnel and light targets, but not vehicles. They have a lead alloy core that is made stronger because it’s topped by steel, hence the nickname. The ATF specifically exempts these rounds from the ban on AP, or armor-piercing, rounds because they simply are not capable of piercing armor. But they do have above-average penetration capabilities and are suitable for most rifles with a 1:7 twist, such as the M16A2, M4, and other 5.56 NATO-chambered weapons.
Since these are mil-spec rounds, they’re made by a military plant: Lake City Army Ammunition. The Lake City plant was originally founded by Remington in 1941 with the sole purpose of helping out the U.S. Army in World War II, and with the exception of a 5-year stretch after the war ended, they’ve been operating ever since. In 1985, the Olin Corporation took over the plant, which basically means Winchester was running it, and in 2001 the massive company ATK took over. As of 2007 their average annual production was 1.4 billion rounds, and they’re the largest producer of small arms ammunition for our U.S. Armed Forces. With those credentials, you can be confident of the quality and reliability of the 5.56 NATO you’re ordering, and it comes in a 1,000-round box.
These are 62 grain, which is the standard for M855 and medium-weight for the cartridge. They’re FMJ, so they’re great for training and plinking, just remember their extra penetration strength. Also remember that although a 5.56 NATO cartridge has nearly identical outer dimensions to a .223 Remington, they’re loaded to a higher internal pressure and cannot be fired from weapons not specifically rated for 5.56 NATO. These rounds have an outstanding muzzle velocity of 3,020 feet per second and make a serious impression with a muzzle energy of 1,256 foot-pounds. These are considered highly desirable rounds by a number of serious shooters, so get your order in for this 1,000-round case without delay.
(Although 5.56x45 NATO does fit in a .223 Remington chamber, the 5.56 is a military, high-pressure round and is not recommended for use in a .223 Remington chamber.)