Mk310 PABM-T

Also known as

Mk310 PABM
30mm PABM-T

The Mk310 PABM-T is Northrop Grumman's 30x173mm programmable air-burst munition with tracer for the Bushmaster Mk44 cannon family. The round is set through a turn-and-time fuze system and can be fired in airburst, point-detonate, or point-detonate-delay modes, giving 30 mm mounts a programmable effect round for modern direct-fire use.

Mk310 PABM-T, 30 mm programmable air-burst munition with tracer, Munitions

Image source: 30x173mm Bushmaster Chain Guns

Profile / Specs

Profile

Origin: United States
Built by: Northrop Grumman
Type: 30 mm programmable air-burst munition with tracer
Service note: Modern Bushmaster ammunition

ammunition projectile tracer

Specifications

Caliber: 30x173 mm
Cartridge length: 290 mm
Projectile weight: 438 g
Cartridge weight: 730 g
Muzzle velocity: 970 m/s
Fuze and modes: Turn-and-time fuze with airburst, point-detonate, and point-detonate-delay modes

Firing Weapons

Northrop Grumman describes the Mk310 PABM-T as a Bushmaster-family round for the Mk44 cannon used on shipboard and vehicle mounts.

Firing weapon

Weapon type

Firing evidence

DS30M 30 mm naval gun, Naval gun, Naval Systems

DS30M 30 mm naval gun

30 mm naval gun mount

Northrop Grumman says the Mk310 PABM-T is designed to be fired from the Bushmaster Mk44 cannon, which is the cannon used in the DS30M mount.

Sources: 30mm X 173mm Suite of Ammunition Product Brochure, 30x173mm Bushmaster Chain Guns

Service And Conflict Use

Service History

In service: Fired from the Bushmaster Mk44 cannon family, including mounts such as the DS30M naval gun.

Media

Mk310 PABM-T Images

Mk310 PABM-T, 30 mm programmable air-burst munition with tracer, Munitions - view 1 — Source: 30x173mm Bushmaster Chain Guns

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Sources

30mm X 173mm Suite of Ammunition Product BrochurePublisher: Northrop Grumman | Note: Supports the Mk310 PABM-T designation, ammunition description, cartridge dimensions, projectile weight, muzzle velocity, fuze system, and firing modes. | Accessed: 2026-06-27 30x173mm Bushmaster Chain GunsPublisher: Northrop Grumman | Note: Supports Bushmaster 30x173mm family background, Mk44 cannon context, official product imagery, and compatibility context for the Mk310 round. | Accessed: 2026-06-27