Electro-Magnetic Anti-Personnel Rounds were developed by Earthling scientists after much speculation about how much metal ore remained within the planet's crust, as a future alternative for long-range warfare. To the great suprise of those scientists, however, the EMRs proved safer and deadlier than the standard projectile round, and soon were in mass production before their intended time.
The common EMR is manufactured first by cast-forming a hard plastic shell, which has an electricity-resistant Nythium coating on the inner side. The shell is then filled with a complicated set of filiments that point out towards the barrel of the weapon. The end of the plastic shell is then sealed. The powerless shells are then transported to the charging facility, where ion power nodes are placed 0.00000001mm away from the shell and discharged. The small amount of oxygen-rich air between the node and filiments in the shell allows the charge to arc, completely filling the shell with its intended payload.
When loaded into EMR specific weapons, the round's back end is rested against a high tech liqui-gel coil, the components of which replace a conventional bolt and allow for an opposite directional discharge through the barrel and out the muzzle.
When the electric charge present inside the filiments of the EMR are exposed to the force of the liqui-gel, the front end of the shell ruptures, releasing the energy. Due to the conductive properties of nythium, however, the shock resistant coating originally placed inside of the shell also displaces out of the barrel, enabling a straight trajectory and increased damage. On impact of the EMR, the nythium coating (Or "tube" as it's commonly referred to) embeds itself into the target which discharges the electric shock into soft tissue, causing extensive bleeding, paralysis, and in the most extreme cases, stroke.
The prototype round, the XR688, was put into field tests at several military bases after information of their effectiveness had reached high-ranking ears. In the following months, upgrades were made to the round, concerning multiple subjects, such as Megawatt capacity and caliber.
More than two years after their conception, the first R690s went into battle . During a light defensive maneuver, it was learned that the true effectiveness of the Electro-Magnetic round was yet to be discovered, as soldiers who were equipped with this round reported to take down [average] 1000% more hostiles than with conventional rounds. Ensuing battles were largely considered one-sided depending on who had the latest EMRs, and soon older models came among the black market for lower-class militaries to purchase.
- R690 - The original EMR, standard issue for medium to high class military assault rifles.
- R905 - A smaller variant of the R690, generally used for closer discharge.
- R1000 - Long range sniper variant, using a miniature compressed energy module to deliver the charge in one burst.