Could Vikings make something close to modern reverse draw crossbow?

I'm writing a story about a modern age HEMA medievalist who time travels to the Viking age.

Is it possible to make a crossbow with similar performance to modern age crossbows without using modern materials such a aluminum, nylon and carbon fibers?

I'm expecting a result to be something with wooden frame, horn and sinew limbs, and steel cams & wheels. Cocking mechanism could be omitted if unfeasible.

I'm assuming that all technologies are available in that time from across the whole of Eurasia (metallurgy, bow-making) would be accessible (and can be traded for).

I'm looking for something with similar performance to the modern crossbow which has 470 FPS / 182 FP (246 Joules) of kinetic energy.

For comparison :

• Medieval longbow (95 lbs draw weight); 45 Joules
• Medieval crossbow (450 lbs draw weight); 53 Joules
• .22 LR; 168 Joules
• 9 mm; 467 Joules
• .308; 3,217 Joules

Source Tod's Workshop

posted about 4 years ago

kelari4377‭

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