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{{Status|Canon}}
{{Era|Human|HCW|Post}}
{{Wikipedia|14.5×114mm}}
{{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]]}}
{{Quote|High velocity, armor-piercing. They'll take the hat off an Elite at two thousand yards. And they ain't cheap.|[[Jun-A266]]}}
[[File:Ammo -Sniper.png|thumb|80px|A 14.5mm APFSDS round.]]
[[File:Ammo -Sniper.png|thumb|50px|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.  
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 ==
== Design ==
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}}
A modernized variant of an old ammunition type employed by the Soviet Union during the twentieth century, the round is employed in an anti-matériel role, used to damage or destroy enemy equipment and vehicles. However, thick [[Covenant Empire|Covenant]] armor, and the use of [[Energy Shields|energy shields]] by [[Sangheili]] and [[Kig-yar]], has also caused it to take on an anti-personnel role in addition to its anti-armor roles.<ref>'''[[Halo: The Flood]]'''</ref><ref>'''[[Halo: First Strike]]'''</ref>
 
A round consists of perfectly shaped tungsten, enclosed in superhardened red polymer petals. On the base of the round, there is a winged hourglass flanked by a double "X", signifying that it is hand-loaded match-grade ammunition produced by [[Misriah Armory]].<ref>'''Halo: Ghosts of Onyx''', ''page 259''</ref>
 
The 14.5×114mm round is an anti-matériel munition, meaning that it is specifically designed for use against military equipment rather than against other combatants. It performs rather poorly in this role in the main trilogy, as rounds fired at vehicles and equipment will do no damage or ricochet. The round is best used on other combatants depending on their use of body armor and energy shields. The rounds leave behind a noticeable white vapor trail that can reveal the position of the sniper. However, this can also be used as an aiming aid for the sniper himself.
 
In ''[[Halo: Reach]]'' and ''[[Halo 4]]'', the round is far more effective in an anti-vehicle role, doing effective damage to even heavier vehicles.


== Variants ==
== Variants ==
=== APFSDS ===
=== APFSDS ===
[[File:Bloodline 14.5x114mm APFSDS Sabot Separation.png|thumb|A sabot separating from a 14.5×114mm APFSDS round.]]
[[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}}{{Ref/Site|URL=https://www.halowaypoint.com/news/the-new-halo-encyclopedia-is-out-today|Site=Halo Waypoint|Page=The New Halo Encyclopedia is Out Today|D=11|M=03|Y=2023}} 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>
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 name="SFMp192"/> The damaging capability of the 14.5×114mm round is impressive: according to a UNSC serviceman, at 600 yards the round will go through about 13 feet of flesh and bone when fired from an [[SRS99D-S2 AM sniper rifle]].<ref name="Believe">'''[[Believe]]''', ''[[Enemy Weapon]]''</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>
 
{{Conjecture}}
Inferring from the designation "armor-piercing, fin-stabilized, discarding sabot", and certain visual depictions, the APFSDS round functions in a similar way to a form of ammunition traditionally used with the cannons of main battle tanks. The bullet is of subcaliber dimensions (meaning that it is too narrow to grip the bore of the barrel), and possesses a long, thin, dart-like shape. Such projectiles can be referred to as a "penetrator" when fired from a large cannon or a "flechette" when fired from a small arm. To allow the projectile to function, it is contained while travelling down the barrel in a structural device called a "sabot", which keeps it centered in the bore and is then discarded in flight. The projectile is stabilized in the air by a set of fins, increasing accuracy. Such ammunition has the benefit of minimizing air resistance, allowing it to maintain exceptionally high velocities over long distances which greatly increase effective range, accuracy and penetrative power. They are constructed from dense, hard materials to maximize inertia and resilience, further improving damaging potential.<ref name="WikipediaSabot">'''Wikipedia''', [https://en.wikipedia.org/wiki/Armour-piercing_fin-stabilized_discarding_sabot Armour-piercing fin-stabilized discarding sabot]</ref>
{{Conjecture end}}


=== HVAP ===
=== 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>
The 14.5×114mm HVAP (High Velocity, Armor-Piercing) round is substantially different from the APFSDS round: While APFSDS rounds are sub-calibre, dart-like projectiles with a breakaway sabot surrounding an arrow-like bullet, HVAP rounds are full-bore rounds consisting of a core of high-density, hard material surrounded by a full-bore shell of a lighter material such as an aluminium alloy.
 
HVAP rounds lose velocity and accuracy at long ranges, giving rifles firing this round an effective range of roughly 1800 metres, considerably less than the 2300 metre ranges of the later-developed, APFSDS-firing SRS99C-S2 and SRS99D-S2 rifles.


=== HEAP ===
=== 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>
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, dealing a great deal of damage to the target.<ref>'''[[Halo 5: Guardians]]''''', Warzone gameplay''</ref>


== Trivia ==
== Trivia ==
*The closest equivalent to an anti-material rifle using an APFSDS round, akin to the 14.5mm one of the SRS99, would be the 15.2x169mm APFSDS utilized in the prototype [[Wikipedia:Steyr_IWS_2000|Steyr IWS 2000]], which was the first hand-held weapon to use such a round.
*Currently the term "APFSDS" is reserved for large tank-mounted weapons. In small arms such as the sniper rifles used in Halo, it is called a flechette.
*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.
*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.


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File:HReach - Sniper Rounds.png|Jun-A266 giving [[Noble Six]] a magazine of 14.5×114mm rounds.
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:APFSDS_Case.png|×16 APFSDS round case.
File:H2A MP SniperAmmo Concept.jpg|Concept art of the ammunition and its container for ''Halo 2: Anniversary'' multiplayer.
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.
File:HInf S7 Magazine.png|A 14.5x114mm round in the magazine of an [[SRS99-S7 AM sniper rifle]] in ''[[Halo Infinite]]''.
</gallery>
</gallery>


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**''[[Breaking Strain]]''
**''[[Breaking Strain]]''
*''[[Halo: Envoy]]''
*''[[Halo: Envoy]]''
*''[[Halo: Lone Wolf]]''
*''[[Halo: Oblivion]]''
*''[[Halo: Shadows of Reach]]''
*''[[Halo: Infinite]]''
{{col-end}}
{{col-end}}


==Sources==
==Sources==
{{Ref/Sources}}
<references/>


{{Ammunition}}
{{Ammunition}}

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