The rotary bolt was something very innovative. No need for a bolt to go back and forward as nothing to eject. Instead it rotates, picks a cartridge out of the magazine vertically stacked, then rotates and inserts it into the breech. Revolutionary.

150 cartridges in a magazine. And two spare magazines each side on the rifle.

The action and its complexity look like a big negative. If anything fails in that, the rifle is useless and can't be repaired.

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I had been reading a Sci Fi series of novels. About the French Foreign Legion centuries or more in the future. The "Legion of the Damned". It is amusing the writer talks about rifles which are no more modern that what we use today. 700 years or more in the future!

I have theorised projectile firing rifles, no powder, but injecting a small amount of explosive gas or liquid as the propellant. A magazine need only hold projectiles. And a small canister of liquid or gas. The rate of fire could be tremendous. Minimal bolt movement. A rotary bolt would even be a better idea. The vertical stacked magazine seems a great solution. And no awkward magazine sticking out the bottom in the way. A pretty much sealed weapon, could be used in all sorts of environments, dust, sand, snow, moist.

Interesting to revisit the G11 after many years first seeing it.