« previous next »
Pages: [1]

Author Topic: How much does arrow spine change if a shaft is shortened??  (Read 4675 times)

0 Members and 1 Guest are viewing this topic.

Offline Ifrit617

  • Member
  • Posts: 1,596
How much does arrow spine change if a shaft is shortened??
« on: April 06, 2012, 03:13:13 pm »
Hi guys,

I am curious to how much a shafts spine will change when shortened... I have a couple of cedar shafts which are spined 40-45# and are 32" long... How much would the spine change if I cut them down to say 25" for some short bow arrows? Any input would be great.

Thanks.

Jon
Logged

Offline Pat B

  • Administrator
  • Member
  • Posts: 37,633
Re: How much does arrow spine change if a shaft is shortened??
« Reply #1 on: April 06, 2012, 03:49:17 pm »
Jon, the effective spine weight will increase by 5# per inch. The arrows are spined for a 28" arrow so the effective spine of them at 32" would be 20#-25#(5#x4"=20# reduction) Cutting them to 25" would increase the effective spine weight to 52# to 57#.  Having longer arrows doesn't hurt anything. Most of my arrows are cut to 29" to 30" for my 26" draw.
Logged
Make the most of all that comes and the least of all that goes!    Pat Brennan  Brevard, NC

Offline Ifrit617

  • Member
  • Posts: 1,596
Re: How much does arrow spine change if a shaft is shortened??
« Reply #2 on: April 06, 2012, 04:05:14 pm »
Okay thanks for the input pat... I figured around 5# an inch...

Jon
Logged
Pages: [1]
« previous next »