From: selfbow mike
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Date: 17-Apr-14 |
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I have 50 bamboo shafts from china. They are all finished and read to work. I have weighed all the shafts and categorized them in to 10 grain bundles. Next is spinning each group. My question is, which is more important spine or weight. I know both is important but what about a natural material like bamboo.
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From: reddogge
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Date: 17-Apr-14 |
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If the spine is inconsistent they won't shoot well. The weight will just make them drop faster at longer distances. I'd sort by spine and have weight groups within the spine range.
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From: TradArcher771
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Date: 17-Apr-14 |
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What reddogge said. If you get bamboo matched in spine, that usually means they are pretty close in diameter and wall thickness. Although it does vary, usually they will come in close enough to shoot if they've been set aside and drying the same amount of time.
However, due to the natural taper of the shafts they will recover a lot faster in flight then a lot of other shaft materials. This allows you to generally shoot a higher spined shaft then you would with regular wood arrows.
They are more spine tolerant then regular wood shafts, but I still like to match them as close as I can.....Austin
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From: Raymo
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Date: 17-Apr-14 |
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In my opinion both.
On woods, I spine em first then weigh them. If required, a little sanding will bring the highest weight down to the middle of the pack without affecting the spine too much.
I did this once to get all spined the same and within 5gr in weight. I match balanced them etc. even weighed the points, nocks and feathers to make sure they were all the same. They flew awesomely but, it took alot of time and shafts.
I think spine is more important and an acceptable weight spread can then be sorted for from those shafts say 20 grains. Easier and you won't really notice any differece from shaft to shaft.
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From: CD
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Date: 17-Apr-14 |
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In my experience, spine is much more important than weight.
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From: dire wolf
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Date: 17-Apr-14 |
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Spine first.. IF the arrows are not spined properly they will not recover from paradox and fly the line to the mark consistently well..
Weight and balance point are right in there in importance for consistently shooting the line and hitting the mark..
Bamboo arrows are naturally taperedand have a wider compatability concerning spine than any of the wood arrows I have ever used.. I can shoot the same mathed spine weight bamboo arrows from my 77# longbows, 75# recurves..or 60# recurvesand the arrows fly true to the mark..
Do your best to match them up both in spine and weight..Jim
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From: twistedlimbs
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Date: 17-Apr-14 |
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Spine is much more important. You can have a big variance in weight and at hunting distances, you would never be able to tell the difference. From my experience, those bamboo shafts will vary about 50gr +/- per set and 50 grains really isnt much unless you are trying to shoot long distance.
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From: selfbow mike
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Date: 19-Apr-14 |
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Thank you for your info.iwent ahead and weight all shafts and spine tested them all to. Out of fifty shafts couldn't get a dozen to match. But I can just expand my range and be able to get half dozens. I will post a pic when I get some good arrows.
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From: Rooty
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Date: 19-Apr-14 |
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How do spine test them? Are they the same all the way around or do you find the stiffest position a cut the nock. Cameron
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From: m60gunner
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Date: 19-Apr-14 |
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I would also like to know how bamboo shafts are spined? Seems t me the nodes would cause issues as they do not appear the same place on every shaft.
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