Which outcome limited the rate of fire in ancient multi-shot Chu Ko Nu crossbows that used rapidly repeating mechanisms?

💡 Explanation

Bolt dimensional tolerance accumulation limited rate of fire because slightly oversized bolts would jam the repeating fire mechanism, therefore preventing reliable continuous firing, rather than other failure modes involving string and sear material degradation.

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• Which constraint limited the rate of fire for repeating crossbows in the Han dynasty?
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