Arrow spine

[ranger 3]

What spine shaft would I start with a Osage self bow pulling 50@27 66"

Thanks

[Orion]

If it's cut far from center, and if you're drawing 27 inches, 45-50# should work.

[ranger 3]

Thanks,It does not have a shelf it has a floppy rest.

[Traxx]

Start em out full length,and cut em back in small increments,say 1/2" at a time,till you get good flight.