120 lb: Homemade Slingbow with Speargun Rubber (incl. How To)
The Slingshot Channel showed several slingbows, but this time, two things are different. First, the new design really looks and shoots like a recurve bow. The string is replaced by rubber (different thicknesses).
Also, the new slingbow allows very quick band changes. The presented range goes from children strength (25 lb) all the way up into the English warbow league (120 lb).