My homemade world's first Really(!!!) Big Game SlingBow.
Draw weight 44#, arrow 8 gpp (grains per pound), blistering speed 206 fps, Kinetic Energy 33 ft.lbs.
(Easton Kinetic Energy Recommendation Chart: deer hunting 25-41 ft. lbs).
Other my competitors slingbows achieve maximum speed 161 fps and 20 ft.lbs of KE.
Only the best traditional hunting recurve bows can shooting a little faster like my SlingBow... This is world's smallest Really Big Game archery hunting stuff too. I showed just a homemade prototype built provisionally; but made later by a professional manufacturer should have such performances: draw weight 60+ pounds, arrow 420 grains 235+ fps and KE 51+ ft.lbs.
My SlingBow is hidden, because my idea is not patented yet.
I recorded speed a light arrow 6,6 gpp, without fieldpoint too: 216 fps: