I inherited about 75 wood arrows and I am wondering how I can determine the spine of these arrows. These arrows are all new or slightly used and not more than a couple of years old.
Put them on a spine tester.
Here (http://www.3riversarchery.com/Arrow+Building+Tools+Spine+Testers_c52_s8_p96_thumb.html) are some spine testers that are sold by Three Rivers Archery.
If you don't want to buy a spine tester, you can take 2 nails and space them about 6-8" apart horizontally. Leave a small space between them so the shaft is level, and take a aluminum shaft that has a known spine and hang a pound or so from the end of the shaft. Mark where the shaft hangs. Put the wood on and if it is below the mark it is a lighter spine. Above is heavier. Hap