Mielenkiintoista keskustelua välineistä ja ammunnasta. Dan Perry esittelee vipuvarsijousiaan ja hyviä tuloksia. 310-320m selffarilaukauksia, siinä hyvä tavoite suomeenkin.
320 metriä ampunut rajoittamaton selffarijousi, hikkorilankusta:
I built the unlimited (64#) self bow in a low energy design. No reflex, and it has 1 1/2" or more of set. The outer limbs are narrow, but very thick. Tip mass in the last 8" of limb is easily twice what the 300 yard flight bow I gave in the PA artical is, or any of my reflex long bows. Lighter outer limbs and more energy storage give higher dry fire speeds in the same design. So if I have 2 longbows of the same design and tiller, If one has less mass at the tips it will have a faster dryfire speed. If it holds a better profile, storing more energy, it will have a faster dry fire speed.
This bow intentionally has heavy tips or outer limbs, has quite a bit of set, and stacks pretty bad the last 2 inches of draw. All of these slow the dryfire speed. I isolated this one design element so people wouldn’t confuse what was increasing dryfire speed. If I recurved it, or reflexed it, or came up with a way to lighten the tips, or used a good Yew, or Osage stave, There would have been people who would have insisted that one or all of these were responsible for the radical increase in performance!!! So I built a bow that otherwise would have only been an avaerage performing bow. 9" of non-working handel section, 13" lever tips. Over all length 62 inches 26 ounces total weight. Widest part of the working limb is 2 3/8".
