Author Topic: wood arrow spine (Read 299 times)

Slickhead · « **on:** December 12, 2015, 03:34:00 PM »

what spine in wood shafts would be equal to 2016 or 2018?

McDave · « **Reply #1 on:** December 12, 2015, 04:29:00 PM »

On my spine tester, a 2016 tested at 400 spine, 60#. A 2018 tested at 350 spine, 71#. From my previous experience, these shafts would ordinarily be shot from lower poundage bows than those measurements indicate. Part of that could be due to modern bows being more efficient and cut past center, thus requiring a stiffer arrow than when the spine charts were originally designed. The best test in my opinion is to shoot bare shafts until you get one that flies true, although I guess spine measurements do give you a place to start.

Biathlonman · « **Reply #2 on:** December 12, 2015, 04:56:00 PM »

Chart I have says 61 and 65 respectively.

Surewood Steve · « **Reply #3 on:** December 12, 2015, 04:59:00 PM »

From my past experience a 2016 should be about 50/55# and the 2018 about 55/60# in wood shafts. I hunt with woods, because I make them, I like them and they are fun to build, but I stump shoot a 2219 with a judo head on and it flies great with my 60# recurve at 28". Now with that said I put that 2219 on my spine tester and I recall it's close to 100#, now if I use wood that stiff my arrows come out way over spine. Wood and aluminum must have a different recovery rate is all I can figure out.