Oddball Infobox-1-
40px-Terminal.png This article, Sniper Rifle System 40A-O Anti-Materiel/Anti-Vehicle, was written by Ajax 013. Please do not edit this fiction without the writer's permission.
"We gotta name for these things. Hotel Charlie, sorta short for 'HAND CANNON'"
―Corporal Mack 'Bonanza' Jericho

Production information
Technical specifications
  • Barrel
    • 920 mm
  • Weight
    • 15.4 kilograms (unloaded), 17.9 kilograms (loaded)
  • Length
    • 1768 mm
Magazine Size

1 shell

Fire Mode
  • Semi-Automatic
Ammunition Type

70 mm Shell




2400-2890 metres


3320-3760 metres


Necros War




The SRS40A-O Anti Material/Anti Vehicle Rifle is a large, powerful rifle designed for engaging tanks and armoured vehicles. The weapon fires a caseless 70mm shell, breech loaded into the gun. The nitrocellulose mold combusts, leaving nothing behind. The weapon is made of a titanium alloy with microproccesor driven anti recoil systems, shock absorbing bipod, shock absorbing stock and smooth bore barrel. The weapon also features a AUGUR Fire Control Scope. The gun can fire a number of munitions, including sabot-discarded, high explosive, self guiding and HESH warheads.


The weapon is primarily used as a anti tank weapon, punching holes in armoured vehicles, with the APFSDS shell capable of even damaging main battle tanks. Due to the small flash of the weapon, high speed of the projectile and the lack of any homing packages it can sneak under most counter missile and protection systems. While not always capable of piercing frontal tank armour it can pierce flank, rear and upper armour with ease. It is also used as both an anti-materiel rifle, for destroying enemy munitions and supplies and as a high profile sniper rifle, apt for engaging well armoured and well defended personnel, such as Mgaelekgolo.


The weapon is a breech loaded smoothbore rifle with a rotating locking bolt. The weapon has a Misriah rail with a AUGUR FCS on it's receiver, although it also comes with recessed, fully adjustable, yet removable day/night iron sights. The round is breech loaded by opening the motorised cover and inserting the round into the breech and closing it. The barrel is made of carbonized metal, reducing thermal distortion to allow maximum accuracy and is rested in a bed of thermoplastic to increase stability during firing. Once fired, the entire barrel recoils, to mitigate some of the recoil produced. It can also fire specially made APSDFS munitions, utilising stabilisation to cancel out the spin induced by the rifled barrel.

UNSC Comments

"After Linna we found the Necros Compound tanks used some kinda detection system that picked up RADAR pings and lasers aimed at it, alerting it to laser designators, laser targeters, RADAR guided weapons, missile and rocket flashes and shit. This thing doesn't set off ANY of them! Heh!"

"We say it, a Golem crawling outta the wreckage of the subway access building. Those charges and the dozen tons of concrete shoulda killed it but it was still moving! He nailed it with a armour piercing explosive round just at the base of its skull, blew off its bloody head!"

"Thing isn't as useful as it sounds. The M899 and the M41 can strike exactly where it needs to hit while the SRS40 hits where ever it damn well feels like hitting."

Individual and Crew Served Weaponry of the UNSCDF

Assault Rifles

MA6A Individual Combat Weapon System | M2A Carbine

Battle Rifle

M55C Enhanced Battle Rifle | M396 Designated Marksman Rifle

Machine Guns

M397 Individual Automatic Rifle | M739C Squad Automatic Weapon | M122 Light Machine Gun | M247B2 General Purpose Machine Gun | M247H2 Heavy Machine Gun | M343A3 Heavy Machine Gun | M780 Special Purpose Machine Gun

Submachine Guns

M20A Submachine Gun | M12 Special Operations Carbine


M45F Close Assault Weapon System | M108A1 Close Assault Weapon System | M77 Extreme Close Quarters Combat System

Sniper Rifles

M113 Scout Rifle System | M1091 Sniper Rifle System | Sniper Rifle System 99G-S6 Anti-Materiel | Sniper Rifle System 99S-S6 Signature-Suppressed Anti-Materiel | Sniper Rifle System 40A-O Anti-Materiel/Anti-Vehicle | M99CA1 Special Application Scoped Rifle


M6L Personal Defence Weapon System | M57 Pistol

Energy Weapons

Weapon/Anti-Vehicle Model 6B Grindell/Galilean Nonlinear Rifle | MX4 Light Support Weapon | MX12 Directed Ion Energy Rifle | M921 ARC

Non-Lethal Weapon

M2 Threat-Negation Device | MX9 Pulsed Energy Projectile System | M39 Long Range Tranquillizer Rifle

Missile and Rocket Launchers

M41B2 Medium Anti-Vehicle/Assault Weapon | M899 Light Anti Armour Weapon | M57 Light Multipurpose Assault Weapon | M1 Multiple Launch Rocket System | M25 Underslung Rocket Launcher

Grenade Launchers

M319N Individual Grenade Launcher | M23 Multiple Grenade Launcher | M363B RPD | M556 Counter Defilade Grenade Launcher | M460C Automatic Grenade Launcher | M24 Underslung Grenade Launcher | M556 Counter Defilade Grenade Launcher | M26 Grenade Launcher Module


M71 Mortar | M78 Mortar | M81 Mortar


M117 Light-Weight Field Howitzer

Sentry Guns

M55 GUARD DOG Sentry Gun | M601 GARGOYLE Sentry Gun


M9 Dual Purpose/High Explosive Grenade | M2 Anti-Materiel Grenade | M70 Flash Bang Grenade | M43 Smoke Grenade

Anti-Personnel and Anti-Armour Mines

M320 Anti-Tank Mine | M341 Anti-Tank Mine | M362 Anti-Tank Mine | M121 Bounding Anti-Personnel Mine | M127 Anti-Personnel Mine

Explosive Devices

C-7 Foaming Explosive | C-13 Gertex | C-14 Plastic Explosive | C-15 Liquid Explosive | M303 Thermite Cord | M311 Detonation Cord | M382 Special Munition Attack Charge (Kinetic) | M390 Breaching Charge | M394 Clearance Charge | M404 Special Lightweight Attack Munition | M366 Demolition Charge | M376 Satchel Charge | M379 Explosive Pack

Angel Arm Specialties

Angel Arm Special 33 | Angel Arm Cutlass