odd arrow spining question

[pHz]

just thinking out loud really

if i have a current set of arrows that i can bareshaft tune fairly well at a given distance (ie - the unfletched shafts land in the group with the fletched ones) can i use these as a benchmark for trying out other arrow types before taking the plunge on a full set ?

say i bought a couple of shafts of each of the arrows and spines i was thinking about (assuming they are available as single shafts) cut to the same length and fitted with the same nocks and pile weights

could i use these 'sample' bareshafts to check their appropriateness in terms of spine - if they grouped with the known arrows and bareshafts i already have would that indicate spine in ROUGHLY the right area despite them being different brands and models ?

trying to think this through and REALLY cant decide whether it ought to work or not

slainte : rob

[bimble]

weight of arrow might cause virtical differences if the distance used is long enough.

[Jerry Tee]

And the diameter will cause left right differences. but if you are going to buy two shafts of the new type of arrow thats all you need one with fletches and one without.

[King Custard]

Originally Posted by pHz

if i have a current set of arrows that i can bareshaft tune fairly well at a given distance ............ can i use these as a benchmark for trying out other arrow types before taking the plunge on a full set ?
slainte : rob

In my limited understanding it would be an 'indicator', but certainly not a reliable one at 'a single given distance'.
Having your bow set to give perfect bareshaft results at - say 20 yards- doesn't necessarily mean the bare shafts will be in or even close to the group at 40, 60, 80 or 100 yards. this would be because a fletched shaft V a bare shaft is essentially a different arrow - the weight of the fletches, their stiffenning effect upon the arrow, and the FOC (and therefore 'casting arc' ) and drag of course ( especially in any wind) are therefore going to be different.
Having the ideal bareshaft results at different distances would require adjustments ( if even very small) to the bow set-up to achieve- effectively a different tune for each distance -possibly...nay probably.

If you have a set of arrows that you are comfortable with, that are working well for you when you are shooting well- and giving you a reasonable bareshaft result at a range of distances....then i'd suggest plotting those results to compare with the sample arrows - over a range of distances.

Comparing the two or three brands, or so, of arrow at only one distance could leave you throwing money into a set of arrows that only shoot well for you at one given distance....and I guess thats what you are trying to avoid isn't it.

So short answer - yeah - kind of
Long answer- there's alot of variables- far better to find someone with the arrow format that you'd guess was right for you- swipe their arrows and try them for performance at all your shooting distances - in practice - not in bareshaft theory.
In my own experience I've had three sets of arrows that all bareshafted 'reasonably' off of the same bow tune at 20 yards...but flew wildly differently at shooting ranges.

[gandhiva]

people have enough trouble trying to group bare and fletched arrows from a single set and you wanna embark on a journey to group arrows of different diameters and lengths? are you suicidal?

[pHz]

Originally Posted by gandhiva

people have enough trouble trying to group bare and fletched arrows from a single set and you wanna embark on a journey to group arrows of different diameters and lengths? are you suicidal?

nah - just (as ever) curious

king C - i know to test at different distances but left that out of the question in order to keep the idea as simple as possible for the purposes of the thread

slainte : rob

[gandhiva]

However, having said that there is a lot of sense in your question. Archers in the past who made their own wooden arrows, would shoot all their arrows bare (long and short, thick and thin) and then fletch all those arrows that grouped together. The rest would be handed over to the younger archers.

[King Custard]

Of course you do - appologies if I seemed to be talking down to you - I just woke up.

unless these odd bareshafts came to you for free and you conducted your tests at no loss to you other than time...then I'd suggest doing what the un-sponsored among us have to do..
Throw money at it just to find out!

Get a quiverful of 'expectedly close to matching' shafts - even if they are a little 'used'- and play with them to guage performance. Often you can get back what you paid on used shafts on Ebay or the like....there's not so many at longer drawlengths though.

[geoffretired]

An interesting question.
Looked at the other way round; if the new bare shafts were wrongly spined for your bow, you would expect to see left or right impacts compared to ones that do match. If the new ones are fatter or thinner, it might require a little adjustment of centre shot just to double check the results.

[napolienne]

Originally Posted by pHz

just thinking out loud really

if i have a current set of arrows that i can bareshaft tune fairly well at a given distance (ie - the unfletched shafts land in the group with the fletched ones) can i use these as a benchmark for trying out other arrow types before taking the plunge on a full set ?

say i bought a couple of shafts of each of the arrows and spines i was thinking about (assuming they are available as single shafts) cut to the same length and fitted with the same nocks and pile weights

could i use these 'sample' bareshafts to check their appropriateness in terms of spine - if they grouped with the known arrows and bareshafts i already have would that indicate spine in ROUGHLY the right area despite them being different brands and models ?

trying to think this through and REALLY cant decide whether it ought to work or not

slainte : rob

As has been mentioned, different shaft thicknesses would give you centre shot and nock height issues. I don't see why you'd want to do such a test though - if you have a set of arrows that spine perfectly and are after an upgrade, just get the same spine in a different shaft! Or is the problem that we don't have readily comparable/standard spine "sizes"? A cartel 740 isn't the same as an Easton 740, IIRC.