28“70@ BBI longbow with shot test

[leehongyi]

this is my latest BBI longbow. the materials are ipe and tonkin bamboo. after tiller it got a draw weight of 70lbs at 28 inches.
this combination is so nice that this bow looks very thin bow actually powerful. the best shot hit at a slope 170 meters away.
the arrows are of 44g. i don't really know how is this performance but just feel that is good. any suggestions guys?

○|￣|_

why the maximum size is only 250kb?

[leehongyi]

the video is here:
https://www.youtube.com/watch?v=Q5DGVxB-3eE

the arrow was shot from the tree in front of the small house. it hit in the soil for about 5 inches.

[Whiskeyjet]

Sweet bow! Was thinking of making one in this style. What kind of thickness does it have for the Ipe? Is it a flattish cross section or more of a traditional ELB?

[Del the cat]

You would get better distance with a lighter arrow and smaller fletchings.
You should be able to get past 200 yards. A Yew bow of mine 70# @ 28 shot 210yards with one of my regular arrows (about 26g 3" flights 100 gn point), 230 with a flight arrow and 160 with a heavy warbow arrow.
Del

[loon]

very cool. the arrow weight/bow weight ratio is 9.7 gpp. I guess it's comparable to broadhead flight shooting.
suggestions?
Did you do Perry reflex?
Maybe a slightly more 'refined andaman-holmegaard' design - thinner stiff outer limbs. Even if mid/inner limbs are still pretty narrow, but maybe not as much? TBB 3 and 4?
(do the actually experienced agree? would it be faster than a more ELB-ish design? but it'd still look and handle somewhat as an ELB? besides some of the bows from the Mary Rose have narrowed outer limbs)
maybe hld too. I wonder how hard it'd be to do both HLD and perry reflex.. both are supposed to be good for performance...