4.7mm caseless

The 4.7mm caseless is a round developed by the German company Heckler & Koch. Rather than placed inside a casing with the propellant sealed inside by the bullet, the caseless ammunition consists of a block of propellant with the bullet buried inside. The resulting space and weight savings allow for very high magazine capacities and rates of fire. H&K created a modular assault rifle that could be modified to act as a squad support weapon.^[1][2] Rheinmetall AG pushed further, creating the ultimate minigun capable of achieving firing rates of 90 000 RPM, representing the very pinnacle of Teutonic engineering.^[3]