I have some tapered fir arrows that are spined 55-60.
Tapered Fir Shafts
I bought them to shoot from a 52# HH longbow. They group very tightly to the left indicating too heavy a spine.
Yet they shoot perfectly from a 45# Zipper recurve.
Does indicate they are too heavy to bend around the longbow since they work fine with a center cut recurve?
Thanks!
That sounds about right.
yep. And that recueve has more zip making the spine requirements heavier. God Bless
Not so much the "zip" as how deep the shelf is cut. Put on some heavier field points and see if it helps.
I find Hill bows to generally shoot a spine a bit under draw weight with a 28" arrow and 125 gr point.
The taper of the shaft can reduce the effective spine by up to 10#. A tapered shaft "gets around" the bow better than a parallel shaft.
I taper shafts for guys and find that the spine decreases only 1-2 lbs. But the clearance is made slightly better. As Fletcher says a recurve that has a more center cut shelf will be more forgiving. With HH style bows it is more important to get a spine weight that will allow the arrow to bend around the handle.