Galvanus-Pattern Recoilless Repeating Cannon

**This article, Galvanus-Pattern Recoilless Repeating Cannon, was written by LookatYOUbud. It may be linked to any page without asking for the author's permission.**

## Production and service

### **Conflicts**

The Siege of Lachrimorta, The Cleansing of the Thousand Moons, The Crusade of Letheran Liberation

## Specifications

### **Sight system**

Auspex and laser sights integrated with Astartes power armor.

The **Galvanus-Pattern Recoilless Repeating Cannon**, affectionately referred to as the *Treatymaker* by its users, is a relatively new addition to the armouries of the Imperium. One of Pellora Secundus' most prolific exports, it has found its way into the hands of Space Marine Chapters across the Imperium.

The *Treatymaker* is the product of one of a number of projects initiated in the wake of the disastrous end to the Laternax Councils. The Redemptors Astartes, as a result of their fractured organization, had a need for a force-multiplier that would allow their "Orders" to match the firepower of a *Codex*-compliant Chapter. The delivery of the Pellora-Pattern Recoilless Repeating Cannon to Lachrimorta's armories in the early years of the 42nd Millennium greatly magnified the Redemptors' ability to assist beleaguered Imperial forces cut off from major supply routes. Landing small squads armed with these weapons at critical locations can turn the tide of a battle in moments, as a hail of heavy artillery erupts from impossible positions.

## Overview

Combining the overwhelming firepower of an artillery battery with the tactical flexibility of an Adeptus Astartes squad, the *Treatymaker* fills a number of specific battlefield niches where more general-purpose armaments fall short.

Essentially, the Pellora-Pattern Recoilless Repeating Cannon is a 101mm Imperial howitzer modified for portability by a Primaris Space Marine, and fitted with an exhaust port on its back end to redirect the flow of propellant and counteract recoil. Specially produced caseless ammunition allows for compatibility with a gas-operated autoloading system.

The *Treatymaker* is a heavy weapon in a very literal sense - weighing nearly two hundred kilograms (~450 lbs), it is portable only in relation to its larger cousins in the Astra Militarum. Deploying the weapon means choosing lines of fire and angles of approach with caution, as its bearer is slowed significantly by its mass. Depending on payloads and propellant loads, the *Treatymaker*s shells can weigh upwards of 5.5 kg (~12 lbs), meaning the weapon is unsuitable for prolonged engagements without access to supply lines.

## Features

The *Treatymaker* utilizes a number of recoil-mitigating techniques to allow for the tactical deployment of artillery-scale munitions. The casings of the *Treatymaker*s ammunition are vented to allow the weapon to capture and redirect propellant gases out of an exhaust nozzle to counteract its recoil. An integrated recoil compensator in the *Treatymaker*'s muzzle greatly diminishes the effects of recoil on the weapon's accuracy.

Integrating seamlessly with the advanced technology of Indomitus Power Armor, the *Treatymaker'*s integrated auspex and sensor suite allows its wearer to calculate precise ballistic trajectories on the fly, maximizing the effectiveness of the weapon's limited ammunition capacity and providing opportunities to deliver indirect fire over obstacles and at more advantageous angles of attack.

At skirmish distances, anti-personnel rounds allow the *Treatymaker* to function as an area-denial weapon, providing suppressing fire to wide swathes of the battlefield or delivering a hail of smart submunitions to massed assaults of infantry. Using more traditional "dumb" rounds, one Marine is capable of sending the firepower of an entire squad down the cramped corridors of a hive city or space hulk, holding it uncontested as long as he can be supplied with ammunition.

Loaded with purpose-built Armour-piercing fin-stabilized discarding sabot (APFSDS) rounds, the *Treatymaker* is an effective counter to virtually any hardened target that it can be conceivably aimed at.

At longer ranges, the *Treatymaker* allows a small squad of Astartes to support allied ground forces with precisely targeted delivery of heavy ordinance.