2mm Electromagnetic Cartridge (Fallout 4)

The 2mm electromagnetic cartridge is a type of ammunition for use in weapons in Fallout 4.

Characteristics
Much like in Fallout 2, 2mm EC rounds are used by the incredibly powerful Gauss rifle. The rounds are exceptionally rare and expensive.

Weapons using this ammunition

 * Gauss rifle
 * The Last Minute

Locations
These vendors sell ~20-55 every 48 hours (rare ammo type)
 * Arturo Rodriguez, Myrna and Percy at Diamond City market
 * Daisy, KL-E-0 and Rufus Rubins in Goodneighbor (Rufus is located in Hotel Rexford).
 * Sold by Tinker Tom in Railroad HQ.
 * Sold by Proctor Teagan on The Prydwen.
 * Sold by Ronnie Shaw at The Castle after completing the quest Old Guns.
 * Sold by Cricket the traveling merchant.