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Thus, if other factors are equal, a standard Han dynasty crossbow with a ≈387-pound (176 kg) draw weight and a 20–21-inch (510–530 mm) powerstroke would have comparable levels of power to a medieval European crossbow with a 1,200-pound (540 kg) draw weight and a 6–7-inch (150–180 mm) powerstroke. [97] [98]
Medieval European crossbows had a much smaller draw length than bows, so that for the same energy to be imparted to the projectile the crossbow had to have a much higher draw weight. A direct comparison between a fast hand-drawn replica crossbow and a longbow shows a 6:10 rate of shooting [92] or a 4:9 rate within 30 seconds and comparable weapons.
The Skåne lockbow was an early form of crossbow from Skåne or Scania, then a province of Denmark. (It has been part of southern Sweden since 1658.) An example was discovered in 1941 in Sweden dating from the 16th century, but seems to be similar to earlier models. The lockbow was used throughout northern Europe between ca. 900-1600 CE.
Since the arbalest was much larger than earlier crossbows, and because of the greater tensile strength of steel, it had a greater force. The greater draw weight was offset by a shorter draw length, which limited the total potential energy that could be transferred into the crossbow bolt. A skilled arbalestier (arbalester) could loose two bolts ...
Hunting crossbow. Big game hunting requires a draw weight of more than 35 pounds-force (16 kilograms-force). For larger game such as elk or moose, more than 50 lbf (23 kgf) is suggested. Most male American archers can draw a bow rated at 50–60 lbf (23–27 kgf), most women 30–40 lbf (14–18 kgf). [6]
GNAS recognizes three grades of arbalist, [14] Master Arbalist (scoring 780 or higher in three qualifying Crossbow Windsor Rounds) Arbalist 1st Class (scoring 630 or higher) and Arbalist 2nd Class (480). A Crossbow Windsor Round is shot on a 60 cm 10-zone face scoring 9,7,5,3,1; three ends at 40 yards, three at 50 yards and three at 60 yards.
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