M118 Full Metal Jacket Armor-Piercing

Cartridge, Caliber 7.62mm, Ball, Full Metal Jacket, Armor-Piercing, M118, more commonly known as M118 Full Metal Jacket Armor-Piercing, M118 FMJ-AP, or simply M118 ball, was a 7.62x51mm NATO cartridge in service with the , as well as the standard-issue ball cartridge of the from 2356 onwards, replacing the previous .224 caliber M62 Full Metal Jacket Semi Armor-Piercing cartridge. Despite the designation, the cartridge was not related to the 20th century M118 or M118LR Special Ball cartridges used by the United States military.
==Description & Technical Details==
The M118 FMJ-AP cartridge was a 7.62x51mm NATO cartridge mass-produced by . While a number of varieties of this cartridge existed, most consisted of a copper-jacketed 152-grain (9.85 grams) lead-free, spitzer-type projectile containing a solid tungsten penetrator core, seated in a Boxer-primed brass case containing between 44 and 45 grains of UMPC-4 propellant.
Starting in 2554, Misriah Armory began replacing the original copper jacket with a cupronickel jacket. Despite this, however, the projectile remained the same size, weight, and shape.
===M118SP Full Metal Jacket Armor-Piercing, Special Purpose===
Primarily used in conjunction with the and designated marksman rifles, the M118SP Full Metal Jacket Armor-Piercing or Type SP cartridge, formally designated as Cartridge, Caliber 7.62mm, Special Purpose Ball, Full Metal Jacket, Armor-Piercing, M118SP, was largely identical to the standard M118 ball cartridge, with the exception of using a slightly longer, open-tipped match bullet. This higher quality, match-grade projectile was of a much greater consistency of manufacture and sported a greater ballistic coefficient compared to that of the standard M118 cartridge, lending it greater and more repeatable accuracy. However, due to the longer bullet, the Type SP cartridge was not able to feed properly in rifles.
==History==
==Gallery==
M118 7 62x51mm FMJ-AP.jpg|A post-2554 M118 cartridge with the silver-colored cupronickel-jacketed bullet, seen here loaded in an MA5D magazine.
H3ODST MA5 Ammo.jpg|A standard M118 resupply pack, containing twelve ten-round stripper clips.
Dyqa5JgVYAAgzZb.jpg|A size comparison of various common UNSC cartridges.
Category:Technology
Category:UNSC Technology
Category:Cartridges
Category:Rifle Cartridges