Quote:
Originally Posted by ak_aramis
The energy on target is comparable to a 7.62N round... much slower, but way more mass. 3000+ grains at 200+ fps, and (unlike the firearms of the day) able to fire a case hardened AP bolt with good accuracy.
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For what it's worth, and a bit of a tangent, the 740-lb draw crossbow I modeled for my GURPS article The Deadly Spring only delivered 40J through a 14" AP ash projectile. The draw stroke (7.5") and heavy limbs made it pretty inefficient. This was about a 9-lb weapon.
Siege crossbows with many thousands of pounds of draw weight were a differnt story; not sure how portable these were.