General History
A classic large German cartridge, the 11mm mauser was phased out quickly in the firearms world, being a black powder cartridge, and thus quickly replaced by the much more powerful, smokeless powders, commonly using nitrocellulose. With 4 times the power density, modern smokeless largely eclipsed black powder, even in cased cartridges, due to it's low power and viscous black smoke it generated, which often blotted vision and gave away the troops' positions. While in theory the cartridge could have been upgraded to smokeless powder, the guns it was used in would not have been powerful enough to handle the increased pressure, and thus wouldn't have been practical; it also would have significantly increased the required weight and recoil of the rifles.
To a limited extent, rifles which would handle the higher pressure rounds were created, in a small batch of 8,000, totalling with 2,000 prototypes to 10,355 rifles. Made almost exclusively under the direction of General Hans Van Adlersflügel, of the Grey Guard, it was intended to fulfill a very specific niche role required by the troops, and to simplify creation be reusing elements of existing cartridges. Untrusting of large semiautomatics, the general commissioned it's creation under the guise of providing a mid range weapon the average soldier could use, to punch through light armor in the field. Utilizing higher pressure cartridges, the 24 gram rounds went from approximately 2,000 joules to 8,000, thus increasing the velocity from 440 m/s to 815 m/s.
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