Editing 14.5×114mm

{{Era|Human|HCW|Post}}
{{Wikipedia|14.5×114mm}}
{{Quote|High velocity, armor-piercing. They'll take the hat off an Elite at two thousand yards. And they ain't cheap.|[[Jun-A266]] to [[Noble 6]] during the [[mission to Szurdok Ridge]]}}
[[File:Ammo -Sniper.png|thumb|80px|A 14.5mm APFSDS round.]]
The '''14.5×114mm''' round is used by the [[United Nations Space Command]]'s [[SRS99 series]] of sniper rifles. Multiple ammunition types are available in this cartridge. 

== Overview ==
This ammunition shares its stated dimensions with a powerful cartridge developed in the 20th century by the Soviet Union, intended as an anti-materiel and machine gun round. The [[UNSC]] employ it in their own [[SRS99 series|anti-materiel sniper rifles]], which are highly effective when used to engage and destroy enemy equipment, vehicles and infantry, though the latter is not their intended primary function. It has been noted, however, that in an anti-personnel role, weapons firing this cartridge possess admirable performance against advanced [[Covenant]] [[energy shield]] technology.<ref name="EVG179">[[Halo: The Essential Visual Guide|'''Halo: The Essential Visual Guide''']], page 179</ref> While there exists a variety of ammunition types available in this cartridge, they tend to be highly damaging, precise and effective at long range.<ref>[[Halo: Combat Evolved|'''Halo: Combat Evolved''']]'', Gameplay''</ref><ref name="NightfallJun">[[Halo: Reach|'''Halo: Reach''']]'','' [[Nightfall|''Campaign level "Nightfall"'']]</ref>{{Ref/Reuse|H5GG}}

== Variants ==
=== APFSDS ===
[[File:Bloodline 14.5x114mm APFSDS Sabot Separation.png|thumb|A sabot separating from a 14.5×114mm APFSDS round.]]
The 14.5×114mm APFSDS (armor-piercing, fin-stabilized, discarding sabot) round is the most commonly employed ammunition type for use with the [[SRS99 series]].{{Ref/Reuse|SFMp192}} The round is easily capable of over-penetrating armored soldiers and whatever was behind them, making caution paramount when employing this ammo.<ref name="HCEM">'''[[Halo: Combat Evolved Manual]]''', ''page 18''</ref> The round is also highly potent at inflicting damage against light vehicles.<ref name="SFMp192">'''[[Halo: Official Spartan Field Manual]]''''', page 192''</ref> Ammunition of this type which was utilized in 2557 aboard the [[UNSC Infinity|UNSC ''Infinity'']] with the [[SRS99-S5 AM sniper rifle]] bore the alphanumeric designation "M232".<ref name="brief">'''Halo 4 Limited Edition''', UNSC ''Infinity'' Briefing Packet</ref>

=== HVAP ===
The 14.5×114mm HVAP high-velocity armor-piercing round is an alternate ammunition type to the standard APFSDS which was used with [[SRS99-AM sniper rifle]]s during the [[Battle of Reach]]. According to [[Spartan]] [[Jun-A266]], the round is sufficient to "take the hat off an elite at 2,000 yards." He also implied that they were highly expensive.{{Ref/Reuse|NightfallJun}} During [[Blue Team]]'s mission to [[Reach]] in 2559, Spartan [[Linda-058]] used titanium-jacketed, depleted uranium HVAP rounds which proved capable of penetrating the energy shielding of [[Keepers of the One Freedom]] [[Seraph|Seraph fighters]].<ref name="SoR2">''[[Halo: Shadows of Reach]], Chapter 2''</ref>

=== HEAP ===
The 14.5×114mm HEAP (high-explosive, armor piercing) round is used by [[Linda-058]] in her personal modified rifle ''[[Nornfang]]''.<ref name="LAL">[https://www.halowaypoint.com/en-us/community/blog-posts/canon-fodder-locke-load '''Halo Waypoint''' - ''Cannon Fodder: Locke & Load'']</ref> These rounds explode violently on impact, doing a great deal of damage to the target.<ref name="H5GG">'''[[Halo 5: Guardians]]''''', Warzone gameplay''</ref>

== Trivia ==
*The Steyr ACR is a real-world prototype weapon that was designed to fire a 5.56mm flechette, similar to the 14.5mm APFSDS used in Halo.  However, this weapon is a select fire assault rifle, rather than a sniper rifle.
*The 14.5×114mm is actually a Russian heavy machine gun round that was developed for use in anti-tank rifles like the [[wikipedia:PTRD|PTRD]] and [[wikipedia:PTRS|PTRS]] in World War II, later used in Anti-Aircraft and Vehicle-Mounted roles with the [[wikipedia:KPV|KPV]]; it remains in use to this day.

==Gallery==
<gallery>
File:Romeo Firefight Lost Platoon.jpg|A spent 14.5×114mm brass casing is ejected from the [[SRS99D-S2 AM sniper rifle]].
File:HReach - Sniper Rounds.png|Jun-A266 giving [[Noble Six]] a magazine of 14.5×114mm rounds.
File:APFSDS_Case.png|×16 APFSDS round case.
File:H2A Sniper Rifle Spent Brass.jpg|thumb|Spent 14.5×114mm casing ejecting from an [[SRS 99 AM|SRS99 AM sniper rifle]] in ''[[Halo 2: Anniversary]]'' multiplayer.
File:H2A 14.5x117mm Ammo in Mag.jpg|thumb|14.5×114mm cartridges in a magazine used to feed the SRS99 AM sniper rifle in ''Halo 2: Anniversary'' multiplayer.
</gallery>

==List of appearances==
{{col-begin}}
{{col-2}}
*''[[Halo: The Fall of Reach]]'' {{1st}}
*''[[Halo: Combat Evolved]]''
*''[[Halo: The Flood]]''
*''[[Halo: First Strike]]''
*''[[Halo 2]]''
*''[[Halo Graphic Novel]]''
**''[[Armor Testing]]''
*''[[Halo: Ghosts of Onyx]]''
*''[[Halo 3]]''
*''[[Halo: Contact Harvest]]''
*''[[Halo: The Cole Protocol]]''
*''[[Halo Wars]]''
*''[[Halo 3: ODST]]''
{{col-2}}
*''[[Halo Legends]]''
**''[[Homecoming]]''
**''[[Prototype]]''
**''[[The Babysitter]]''
*''[[Halo: Blood Line]]''
*''[[Halo: Fall of Reach]]''
**''[[Halo: Fall of Reach - Boot Camp|Boot Camp]]''
**''[[Halo: Fall of Reach - Invasion|Invasion]]''
*''[[Halo: Glasslands]]''
*''[[Halo: Combat Evolved Anniversary]]''
*''[[Halo 4]]''
**''[[Spartan Ops]]''
*''[[Halo: Spartan Assault]]''
*''[[Halo 2: Anniversary]]''
*''[[Hunt the Truth]]''
*''[[Halo 5: Guardians]]''
*''[[Halo: Fractures]]''
**''[[Breaking Strain]]''
*''[[Halo: Envoy]]''
*''[[Halo: Lone Wolf]]''
*''[[Halo: Oblivion]]''
*''[[Halo: Shadows of Reach]]''
{{col-end}}

==Sources==
{{Ref/Sources}}

{{Ammunition}}