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14.5×114mm: Difference between revisions

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(Testing out a new variation of the page where, instead of huge conjecture swathes, the acronyms link to relevant Wikipedia articles.)
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=== 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 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> This makes it 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 ([https://en.wikipedia.org/wiki/Armour-piercing_fin-stabilized_discarding_sabot 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> This makes it 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>
 
{{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" or a "flechette". 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|SRS99-AM sniper rifles]] 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 name="NightfallJun"/>
The 14.5×114mm HVAP ([https://en.wikipedia.org/wiki/Armor-piercing_shell#Armor-piercing_composite_rigid high-velocity, armor-piercing]) round is an alternate ammunition type to the standard APFSDS which was used with [[SRS99-AM sniper rifle|SRS99-AM sniper rifles]] 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 name="NightfallJun"/>
 
{{Conjecture}}
Judging from their designation, these rounds work in the same way as a real-world anti-armor ammunition type typically used in the weapons of 20th century combat vehicles. Also referred to as APCR (armor-piercing composite rigid), but known as HVAP to the military of the United States, the basic design is a core of dense, hard material encapsulated in a conventional full-bore projectile of comparatively lesser durability and density. On impact, the energy of the round is concentrated into the dense core, working to drive it through armor plating. While the function of this round in large-caliber ammunition has largely been overruled by APDS (armor-piercing, discarding-sabot) and APFSDS, many small arms ammunition types designed to be capable of damaging lightly armored vehicles or penetrating body armor make use of the same basic design.<ref>'''Wikipedia''', [https://en.wikipedia.org/wiki/Armor-piercing_shell#Armor-piercing_composite_rigid ''Armor-piercing composite rigid'']</ref>
{{Conjecture end}}


=== HEAP ===
=== HEAP ===

Revision as of 11:32, May 30, 2020

Wikipedia.png
 There is more information available on this subject at 14.5×114mm on the English Wikipedia.

"High velocity, armor-piercing. They'll take the hat off an Elite at two thousand yards. And they ain't cheap."
— Jun-A266
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.[1] The UNSC employ it in their own 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.[2] While there exists a variety of ammunition types available in this cartridge, they tend to be highly damaging, precise and effective at long range.[3][4][5]

Variants

APFSDS

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.[6] 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.[7] This makes it easily capable of over-penetrating armored soldiers and whatever was behind them, making caution paramount when employing this ammo.[8] The round is also highly potent at inflicting damage against light vehicles.[6] Ammunition of this type which was utilized in 2557 aboard the UNSC Infinity with the SRS99-S5 AM sniper rifle bore the alphanumeric designation "M232".[9]

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 rifles 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.[4]

HEAP

The 14.5×114mm HEAP (High-Explosive, Armor Piercing) round is used by Linda-058 in her personal modified rifle Nornfang.[10] These rounds explode violently on impact, dealing a great deal of damage to the target.[5]

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 PTRD and PTRS in World War II, later used in Anti-Aircraft and Vehicle-Mounted roles with the KPV; it remains in use to this day.

Gallery

  • A spent 14.5×114mm brass casing is ejected from the SRS99D-S2 AM sniper rifle.

    A spent 14.5×114mm brass casing is ejected from the SRS99D-S2 AM sniper rifle.

  • Jun-A266 giving Noble Six a magazine of 14.5×114mm rounds.

    Jun-A266 giving Noble Six a magazine of 14.5×114mm rounds.

  • ×16 APFSDS round case.

    ×16 APFSDS round case.

  • Spent 14.5x114mm casing ejecting from an SRS99 AM sniper rifle in Halo 2: Anniversary multiplayer.

    Spent 14.5x114mm casing ejecting from an SRS99 AM sniper rifle in Halo 2: Anniversary multiplayer.

  • 14.5x114mm cartridges in a magazine used to feed the SRS99 AM sniper rifle in Halo 2: Anniversary multiplayer.

    14.5x114mm cartridges in a magazine used to feed the SRS99 AM sniper rifle in Halo 2: Anniversary multiplayer.

List of appearances

Sources

  1. ^ Wikipedia, 14.5x114mm
  2. ^ Halo: The Essential Visual Guide, page 179
  3. ^ Halo: Combat Evolved, Gameplay
  4. ^ a b Halo: Reach, Campaign level "Nightfall"
  5. ^ a b Halo 5: Guardians, Warzone gameplay
  6. ^ a b Halo: Official Spartan Field Manual, page 192
  7. ^ Believe, Enemy Weapon
  8. ^ Halo: Combat Evolved Manual, page 18
  9. ^ Halo 4 Limited Edition, UNSC Infinity Briefing Packet
  10. ^ Halo Waypoint - Cannon Fodder: Locke & Load

v • d • e
 
List of known ammunition used by the UNSC
Caseless
Shotgun
Others
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