14.5×114mm
From Halopedia, the Halo wiki
File:Sabot separating.gif
The sabot separating
The 14.5x114mm Armor-Piercing Fin-Stabilized Discarding-Sabot bullet is used by the United Nations Space Command's Sniper Rifle System 99C-S2 AM and Sniper Rifle System 99D-S2 AMs. Possibly similar to an ammunition type employed by the Soviet Union during the twentieth century, the round is employed in an anti-material role, used to damage or destroy enemy equipment and vehicles. Thick Covenant armor, and the use of energy shields by Elites and Jackals, has seen it take on an anti-personnel role instead.[1][2]
Trivia
- Did you know that the 14.5x114mm round in reality is a Russian Anti-Tank and Anti-Material heavy machine gun round? Take a look at http://en.wikipedia.org/wiki/14.5x114mm.
- Thsi is only the default ammunition size for the sniper. It can use other ammo types, one being a .480-caliber round.
