this post was submitted on 27 Sep 2024
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NonCredibleDefense

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[–] [email protected] 49 points 1 month ago (1 children)

FN P90's magazine turns the bullets 90 degrees by turning them with its feed geometry. It kinda looks like a slide for bullets if you squint hard enough. HK G11 uses about as many parts as in an average Swiss watch to do the same thing.

[–] [email protected] 15 points 1 month ago (1 children)

I wonder if the G11's mechanism is so overengineered because it uses caseless cartridges.

[–] [email protected] 17 points 1 month ago* (last edited 1 month ago) (1 children)

There were far simpler caseless mechanisms devised. But the G11 fired caseless ammo, rotated it 90 degrees and more importantly had a burst mode where the barrel and magazine recoiled together continually throughout the 3 round burst, only returning to battery after the 3rd round was fired. That latter one added a lot of complexity.

[–] [email protected] 2 points 1 month ago

It's also pretty fast at about 2000 rpm in burst mode. If they hadn't used caseless ammo this would have been a really reliable gun.

Loading it by turning the fold out knob is a bit wonky though. No satisfying chambering clanks like with the M14 or G3. Probably a plus in real combat.

It's not even that caseless. The bullets sit in a rectangular box that contains the primer, propellant and a plastic cap to center it. The ammo really is the worst part of that thing.