PHOTOS OF SPINE TESTER HOW 2 CALIBRATE?

[AALLFAB]

How do i calibrate a spine tester to be accurate to a known tested calibrated standardized AMO static spine. Jim

[Earl Jeff]

I took a few Different arrows that I already knew the spine weight and use them to adjust the anvil weight on my spine tester  

[AALLFAB]

Very cool tester I like that you can easily spin the arrow on yours for knock orientation. Jim

[reddogge]

The AMO standard is a 2.0# weight on a shaft suspended between 26" centers.  You can measure deflection and compare if to this AMO spine chart.

http://www.rosecityarchery.com/amospine.html

[AALLFAB]

Cool chart i will keep a copy with the tester. jim