Primitive Archer

Main Discussion Area => Arrows => Topic started by: D. Tiller on July 16, 2008, 09:07:21 pm

Title: Shoot arrow length and spine adjustments?
Post by: D. Tiller on July 16, 2008, 09:07:21 pm
I was thinking if my draw length is 27" I should start with arrows 30 or more inches long and start lopping off an inch at a time to spine them correctly for the bow I'm shooting. So shoot the arrow, lop off an inch if it does not shoot to target, then shoot again and repeat the process untill it shoots right. Would this work?

David T.
Title: Re: Shoot arrow length and spine adjustments?
Post by: Pat B on July 17, 2008, 12:08:54 am
It will work but you will have to fit the point on each time you lop it off.  A 30" shaft for your draw length is a good place to start. Do you have a spine tester? If so, find a shoot that spines 20# over your draw weight to start with. Spine 4 sides of the shoot and put the stiffest side against the bow. If the     finished arrow doesn't fly right later, flip it over and try again. There is a good chance it will fly well.   8) The natural taper will reduce the spine by 10# and 2" over 28"= reduce by another 10#. If these are too stiff sand the mid section and try again.   I generally don't try to "fine tune" shoot or cane arrows. If they shoot well I use them for 3D and the ones that shoot best are hunting arrows. The squirrelly ones go for flu flus.   Pat
Title: Re: Shoot arrow length and spine adjustments?
Post by: D. Tiller on July 17, 2008, 02:46:46 am
Thanks Pat! I'm planning on making up some soon. After I finnish the next three bows I may have some spare time when the rain sets in and I cant work outdoors anymore.

David T
Title: Re: Shoot arrow length and spine adjustments?
Post by: JackCrafty on July 17, 2008, 11:15:39 am
I would lop off the nock end each time, in 1/2" increments and use self nocks..  Flip the arrow over to see which side shoots best before you finish the arrow....that's what I do.

With shoot arrows, you'll need to make sure the shafts are not oval in cross section....sand them carefully and make sure they are as round as possible.  An oval cross section is common with shoots and will affect the arrow spine.

Also, it's a challenge to make a matched set of 6 (or more) arrows from shoots.  My only advice here is take your time and use the heck out of your scale and spine tester. ;D
Title: Re: Shoot arrow length and spine adjustments?
Post by: D. Tiller on July 17, 2008, 03:07:51 pm
I take it you tie your fletching on when testing to see if they shoot well? Just untie the fletch and move it forward?
Title: Re: Shoot arrow length and spine adjustments?
Post by: JackCrafty on July 17, 2008, 04:21:16 pm
Good point.  No, I don't tie the fletching....I don't fletch the arrows at all when flight testing.  I use the "bare shaft shooting at close-range target" method.
Title: Re: Shoot arrow length and spine adjustments?
Post by: D. Tiller on July 17, 2008, 05:18:56 pm
How close do you stand to the target then?
Title: Re: Shoot arrow length and spine adjustments?
Post by: JackCrafty on July 17, 2008, 05:23:44 pm
About 10-15 feet.
Title: Re: Shoot arrow length and spine adjustments?
Post by: D. Tiller on July 17, 2008, 09:10:47 pm
I will definatly give it a try! Should save on a lot of feathers too.
Title: Re: Shoot arrow length and spine adjustments?
Post by: markinengland on July 18, 2008, 12:14:28 pm
Personally I like over long arrows. An extra six inches of shaft won't weigh a lot and I have found that the longer the shaft the less spine critical it seems. I have shot some very different weight/spine/diameter hazel shafts with weight forward due to hardwood fottings and had quite good results.
Nothing to stop you setting a length a long as you dare.
Many primitive peoples have used very long arrows and in my opinion it is because they work.
Mark in England
Title: Re: Shoot arrow length and spine adjustments?
Post by: JackCrafty on July 18, 2008, 12:54:50 pm
I agree...long arrows work very well.  My kids prefer them too. ;D
Title: Re: Shoot arrow length and spine adjustments?
Post by: D. Tiller on July 18, 2008, 03:57:26 pm
I'll give that a try too! Do any of you weigh your arrows and try to get them as close to the same weight as possible?

David T
Title: Re: Shoot arrow length and spine adjustments?
Post by: Pat B on July 18, 2008, 04:00:05 pm
I weigh all arrows I make and use that to match them somewhat. I'm generally looking for finished arrows to be between 500gr and 650gr for a finished arrow.  Pat
Title: Re: Shoot arrow length and spine adjustments?
Post by: D. Tiller on July 18, 2008, 04:04:59 pm
So, Pat, a 150 grain weight difference is OK?
Title: Re: Shoot arrow length and spine adjustments?
Post by: JackCrafty on July 18, 2008, 04:06:09 pm
For me, weight is more important than spine.  I try to get the weights as close as possible.  A 20 grain difference, or less, is about right (for me).
Title: Re: Shoot arrow length and spine adjustments?
Post by: Pat B on July 18, 2008, 04:10:07 pm
When its time to pick the arrows I will hunt with I pick the ones that fly best from a specific bow and usually their weight is relatively close. Most of my hunting distances is 10 to 20 yards and even 150gr difference doesn't matter that much...at least the way I shoot. :o    Pat
Title: Re: Shoot arrow length and spine adjustments?
Post by: D. Tiller on July 18, 2008, 04:12:07 pm
I've seen you shoot Pat. You hit the target more often than I did at longer ranges than that!
Title: Re: Shoot arrow length and spine adjustments?
Post by: Pat B on July 18, 2008, 04:15:36 pm
...and you saw the arrows I shoot. Quite a hog pog!  ::) No 2 alike.     Pat
Title: Re: Shoot arrow length and spine adjustments?
Post by: D. Tiller on July 18, 2008, 10:04:38 pm
Yep, and ya were still hitting the target!  ;D
Title: Re: Shoot arrow length and spine adjustments?
Post by: Pat B on July 18, 2008, 11:48:56 pm
Exactly. My point! ;)  We ain't working with Swiss watches here. just sticks and strings.  ;) I think you are trying to make it more difficult than it is. Think simple. For some reason, I have no problem thinking that way. ::) 8)
Title: Re: Shoot arrow length and spine adjustments?
Post by: D. Tiller on July 19, 2008, 01:29:35 am
Ah! I got it now Pat!!! Don't over engineer it. Its a soft science!!!