Comments by "Anders Juel Jensen" (@andersjjensen) on "Gear-Ratio-Accelerated? Yep, It's a Thing: French MAT 1955 Prototype" video.

  1. I think you got the gear ratio "up side down". The smaller diameter moves across the stationary part which makes the larger diameter "have a greater surface speed". Which makes sense, as otherwise the whole assembly would have to move LONGER than the bolt need to travel to extract and reload. And you can verify this simply by counting the teeth on both racks: 32 vs 15. This means the bolt travels twice as fast (and thus twice the distance) as the barrel assembly does against the lower.
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