The plasma gun, or "plascannon," is a relic of the old Imperial armies, and dates as far back as the fabled Earthsieges. When Those Who Jumped ventured forth into the galaxy, they brought plascannons with them.
This weapon initiates controlled ignition in a "bullet" of compressed hydrogen to create a ball of dense, superheated plasma. The explosion of the surface layers of the hydrogen bullet provides the force to accelerate the plasma charge toward the target. A core of charged particles injected into the center of the bullet keeps the plasma from expanding for a few seconds after exiting the barrel.
Upon impact, the charge explodes and splashes plasma across a radius of three to five meters. This result is extremely effective against a group of targets. Peltasts in particular enjoy the benefits of the plascannon's firepower when attacking enemy Myrmidons.
For the same reason, the plasma gun also works well indoors, because enclosed space confines the target's mobility and sometimes concentrates the plasma's splash damage in a manner similar to a shaped charge effect. As with other explosive weapons, the wielder risks injury or death from her own plasma if she fires at targets too close to her.
The various tribes frequently use colorful nicknames for the plasma gun. The Starwolf call it the "Dragonsbreath." For the Children of Phoenix, it is the "Firespear." The Diamond Sword and their allies refer to it as the "Sunfinger." The Blood Eagle, however, simply call it a plascannon.
Unlike many other weapons, the Plasma gun has few variants. Most tribes will tweak weaponry to their own tastes, but a plasma gun used by the Children of the Phoenix on Priam III features almost exactly the same design as a plasma gun used by the Blood Eagle on Deus Sanguinius, many jumpgates away. Tribal historians believe the tried-and-true plasma gun simply continues to serve its purpose with enough effectiveness to discourage experimentation.
Plasma guns use a standardized canister for reloads, a reinforced bottle attaching with a magnetic-mechanical seal. The canister compresses the plasma supply and is itself constructed sturdily enough to minimize the chance of a stray breach in the field.
Due to its rugged and safety-reinforced construction, the plasma gun is a heavy piece of work. With the enhanced strength granted by most armors, wielding this weapon is little different from waving a blaster.
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