JeffH
Senior Member Past Moderator
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Don't stand behind me, I'm about to sling!
Posts: 354
Memphis, TN
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David,
This is a hard one. The impact energy is fairly easy to calculate, but.....
The point load of the projectile's impact area is going to be more difficult. You are, however, correct that the glande will be more blunt than the arrow to some degree.
A 30 lb bow shoots a 300 grain arrow in the neighborhood of 14 to 20 ft lbs just as it leaves the bow. A 2 oz glande at 150 fps would have 43 ft lbs but would loose this very rapidly. The impact area would be greater also so should, in theory, cause less damage to the netting.
This is all theory though. Anything thrown from a sling will be quite damaging in its own way. Ben uses a tarp with some success. I have slung rocks and seen them clip off good size branches of trees. It is hard to tell what will happen to your target without some practice.
jeff <><
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