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Old 02-26-2017, 01:09 AM
The Dark The Dark is offline
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I would go longer for an atlatl's range. On my first day using one, I was doing direct fire (i.e. not trying to loft darts) at a target 30 yards away. With my mediocre strength, that should be extreme range, but it was closer to short/medium in how I was launching the darts. I'm also not sure it should be tied to strength; like a pitcher throwing a baseball, there is a minimum level of strength needed, but the technique matters more than brute power.

935 grains would be light for an English warbow arrow. Based on Mary Rose reconstructions, military arrows look to have ranged from 1200 to 1500 grains. From a 150-lb bow (most of the Mary Rose bows are 150-160), a 1500 grain arrow would generate 134 joules at launch, 115 joules at 50 meters, 98 joules at 100 meters, 85 joules at 150 meters, 80 joules at 180 meters, and 78 joules at 200 meters. At 100 meters, it might penetrate maille over a gambeson, but not plate of 2mm or greater thickness. A broadhead, because it would spread the energy over a broader surface, would have less or no Pen (but probably more Dam) against hard armor. Kevlar gets weird with cutting versus piercing.
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