.390

From Halopedia, the Halo Wiki

.390-caliber ammunition is an ammo size used by the UNSC MA2B assault rifles. It is a significantly larger round than the 7.62x51 NATO round used in the MA5B (7.62mm = 0.300 caliber). The .390 comes in at least two varieties: the standard Armor-Piercing round and "Shredder" rounds made from depleted Uranium.

[edit] Trivia

• This round size may have been specifically created for the MA2B - it's modern counterpart is an obscure Soviet assault rifle round.
• Most human weapons in the Halo series use current ammunition sizes. This is one exception.
• The Spartan-II's used this round size in their MA2Bs when they abducted Colonel Robert Watts.

[edit] Related Pages

v • d • e List of UNSC Infantry Weapons Pistols and SMGs M6 series (M6A Handgun · M6B Handgun · M6C Magnum Sidearm (SOCOM) · M6D Magnum Sidearm · M6G Magnum Sidearm · Jilan al-Cygni's Pocket Pistol · M6J Carbine) · M7/Caseless Submachine Gun · M7S/Caseless Submachine Gun Assault Rifles and Battle Rifles MA5 Series (MA5B Assault Rifle · MA5C Assault Rifle · MA5K Carbine) · MA3 Assault Rifle · MA2B Assault Rifle · BR series (Prototype BR55 · BR55 Battle Rifle · BR55HB SR Battle Rifle · Unidentified Battle Rifle Variant) Shotguns M90 Shotgun · DTM/Law Enforcement · Underslung Shotgun Sniper Rifles SRS99C Sniper Rifle ("B"-variant) · SRS99D Sniper Rifle · Model 99 Special Application Scoped Rifle Rocket and missile launchers M19 SSM Rocket Launcher · M19-B SAM Missile Launcher · M41 SSR MAV/AW · LAU-65D/SGM-151 Machine Guns and Support Weapons .30 Caliber Light Machine Gun · AIE-486H Heavy Machine Gun · Heavy Machine Gun-38 · M247 General Purpose Machine Gun · NA4 Flamethrower · M7057/Defoliant Projector · LAU-65D/SGM-151 Missile Pod · Weapon/Anti-Vehicle Model 6 Grindell/Galilean Nonlinear Rifle Explosives 102mm HEAT · C-7 Foaming Explosive · C-12 Shaped Charge · Fougasse · Fragmentation Grenade · M383C Demolition Kit · Napalm Grenade · Satchel Charge · Smoke Grenade · Sonic Grenade · Thermite-Carbon Cord · Thermite Grenade Grenade launchers M301 40mm Grenade Launcher · XM510 Multishot Grenade Launcher Cartridges Used M225 SAPHE · 12.7x99mm · 14.5x114mm · 0.390 caliber · 0.450 caliber · 7.62x51mm NATO · 9.5x40mm M634 X-HP-SAP · MUTA-AP-09334 · M443 Caseless FMJ · Soellkraft 8 Gauge Shell