It’s the HK G11 and FN P90. Both guns have a magazine where the cartridges aren’t in line with the chamber so each cartridge needs to be rotated before it can chambered. HK decided to commune with ancient clockwork gods to learn the secrets of kraut space magic while FN just went with a curved ramp.
Including cooling because casings actually absorb quite a lot of the heat generated by the propellant iirc (which is then easily removed from the weapon by ejecting the spent casing)
It’s the HK G11 and FN P90. Both guns have a magazine where the cartridges aren’t in line with the chamber so each cartridge needs to be rotated before it can chambered. HK decided to commune with ancient clockwork gods to learn the secrets of kraut space magic while FN just went with a curved ramp.
Kek
Th HK was also designed to use caseless ammo, further complicating the machinery of the weapon…
Including cooling because casings actually absorb quite a lot of the heat generated by the propellant iirc (which is then easily removed from the weapon by ejecting the spent casing)