Which drawback limited Ming dynasty repeating crossbow effectiveness stemming from its gunpowder-assisted firing mechanism?

💡 Explanation

The gunpowder's small charge provided variable thrust during each firing in the early repeating crossbows, causing inconsistent bolt trajectories due to variable external ballistics, rather than purely mechanical failures because the design prioritized rapid successive shots.

• Which risk dramatically increases when seasonal temperature variations alter Roman aqueduct mortar?
• Which outcome results from improper control of gunpowder grain size during Chinese rocket manufacture?
• Which materials issue limits uniform cast iron production consistency in early Chinese foundries?
• During the construction of Inca suspension bridges, which increased risk occurred when ichu grass ropes suffered prolonged dampness?
• Which mechanism limited the maximum height of early Egyptian obelisks despite stable base design?
• Which consequence occurs during periods of high winds on historical Viking longships relying on plant-fiber ropes?