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Bare Shaft Tuning: The Saga Continues

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PEARL DRUMS:
This answers your questions that popped up a few weeks back. Its a good feeling have a super tuned bow. Id be willing to bet your accuracy improves instantly.

TSA:
very well done
i must say i like the idea of the bales.
i have always used a more homogeneous foam material, to ensure that the medium was consistent, and that hard lumps didnt deflect the shaft and produce a false reading.
however with the softer bale medium, there is a greatly reduced chance of breaking, and as Don said, multiple shootings of the same shaft will create a good mental picture of what the shaft is doing..

good job!! :OK :OK

WhistlingBadger:
Thanks, TSA and Pearly.  I use bales because I live on a hay pasture, so hay bales are pretty easy to come by.  Despite the fairly soft target, I have broken several shafts throughout this process, but they were shafts that weren't going to work for my bow anyway.  Firewood is firewood, right?

bradsmith2010:
ok so what was the final result,, 35# spine worked the best from your 60# bow,,
you said the handle was a bit wide,, maybe think about adjusting the bow a bit,, as well
maybe the string is lined up better on the the other side,,
also put a piece of tape on the arrow and see if you are pulling to 60#,, I am thinking you should not have to go that low in spine to get good arrow flight,,
if its working for you thats all that matters,, but I am thinking it is indicating a bit of bow tuning is needed as well,,  :)

WhistlingBadger:

--- Quote from: bradsmith2010 on November 06, 2019, 03:13:11 pm ---ok so what was the final result,, 35# spine worked the best from your 60# bow,,
you said the handle was a bit wide,, maybe think about adjusting the bow a bit,, as well
maybe the string is lined up better on the the other side,,
also put a piece of tape on the arrow and see if you are pulling to 60#,, I am thinking you should not have to go that low in spine to get good arrow flight,,
if its working for you thats all that matters,, but I am thinking it is indicating a bit of bow tuning is needed as well,,  :)

--- End quote ---

Well, I'm waiting for some new sitka spruce shafts so I can build actual arrows, but the 35# POC shaft flies well with no fletching, even out to 20 yards, so that's what I'm going with.  It seems low to me, too, but that's what worked best.  Everything I've read says that shooting off the hand demands a lighter arrow, but that seems a little crazy.  My bowyer (Curt Brisky) said that, in his experience, 60# shafts should fly well out of a 60# bow, but I haven't really found that to be the case.  Maybe it's something about the way I shoot.

What kind of tuning do you have in mind, Brad?  I shoot off the hand, so there's really no shelf to adjust, and I'm not at all up to learning to shoot right handed, so tuning opportunities would seem to be limited.  I really should figure a way to measure my actual draw weight; I suspect it has settled into something less than 60#, but I don't have a way to measure how much.  Let me know what you're thinking I might need to change.

Interestingly, I did find that I was nocking way too high on the string.  I had to move way down before my shafts started hitting level.  This process has given me a whole new appreciation for what good fletching does:  I've been shooting quite well, out to 30 yards, with arrows that don't fly worth poo as bare shafts.  Feathers cover a multitude of sins!

Thomas

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