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Just finished bare shaft testing with some POC shafts. The results were a little baffling. By the way, last time I posted about bare shaft tuning with woodies, I got a couple of recommendations that I just fletch 'em up and start there - skip the bare shaft step.
Anyway, my setup is 46@28, cut to center. I draw a full 28" I took two POC shafts spined at 57# and 63#, stripped off the fletches and started playing. As expected the 57# shaft was quite weak. The 63# shaft shows slightly weak (nock left). The biggest mystery is that the shafts hit nock high at 10 - 15 yards no matter how low I move the nock. I can get it close but they always hit nock high. I think I have the spine pretty close with 63# but I am not sure what is going on with the nock setting. Any thoughts?
OL was probably right - I should just fletch 'em up, glue on some broadheads and get them grouping together and call it a day.
Posts: 357 | From: East Tennessee | Registered: Jan 2004
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You need some clearance for the fletching so I'd keep the nocking point a little high until you shoot them with fletching. Just watch for porposing. You didn't mention how much above perpendicular you went or came down to.
-------------------- PBS Reg member 1973 Maryland Bowhunters Society Traditional Bowhunters of Maryland Heart of Maryland Bowhunters NRA Posts: 3357 | From: Finksburg, MD | Registered: Aug 2008
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I set the nock anywhere from about 1/8" up to 9/16". I think something else might be going on as well. My fletched arrows with weaker spines are hitting nock right (indicating stiff). My bare shafts with stiffer spines are hitting nock left (indicating weak). Seems a little bass ackwards.
Posts: 357 | From: East Tennessee | Registered: Jan 2004
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Where are they hitting as compared to fletched arrows?
-------------------- Isaiah 49:2...he made me a polished arrow and concealed me in his quiver. Wilderness Custom Arrows Posts: 6773 | From: oregon | Registered: Nov 2005
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Snag is leading you in the right direction.."The biggest mystery is that the shafts hit nock high at 10 - 15 yards no matter how low I move the nock."
That's no mystery, that's typical for the "kick" bare shaft method, the left/right will mislead you also..Use the planing method...O.L.
-------------------- ---Six NAA/FITA National and World flight records.---- Posts: 2601 | From: Roswell, NM | Registered: Mar 2003
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Why would you expect shafts that are spined 10-15# heavier than the bow weight at your draw to spine weak? Are you shooting a high a performance bow/string? Heavy points? Shooting idiosyncracies probably explain the nock high as well as nock left findings. As Snag notes, where are the shafts hitting compared to your fletched arrows?
Posts: 5853 | From: Wisconsin | Registered: Feb 2004
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Snag, The bareshafts (60-63#) hit several inches right of EVERY fletched shaft I have from 55 - 65#. All fletched shafts (all 29" with 125 gr field points) seem to fly great.
Any of that make sense?
Posts: 357 | From: East Tennessee | Registered: Jan 2004
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quote:Originally posted by Orion: Why would you expect shafts that are spined 10-15# heavier than the bow weight at your draw to spine weak? ...
I would expect a 60-63#, 29" bareshaft to be about right for a 46@28 high performance recurve, according to the charts at arrowsbykelly, and according to about everything else I have read here.
This is my first foray into wood. Just trying to figure it out.
OL, I think you're right.
Posts: 357 | From: East Tennessee | Registered: Jan 2004
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Wood, carbon, aluminum...It's all the same. Be careful cause guess which direction overly stiff shafts will kick/group?...Yep, they'll show weak. If you drop point weight and things don't get better, that's the case...O.L.
-------------------- ---Six NAA/FITA National and World flight records.---- Posts: 2601 | From: Roswell, NM | Registered: Mar 2003
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Actually, I stripped a few more shafts (I hate doing that) and what I am seeing is that a 55# bareshaft shows VERY weak, a 57# shaft shows pretty weak, and a 63# shows slightly weak - all based on 15 yards, consistently hitting right of fletched shafts with nocks pointing left.
Maybe all this makes sense and even the 63# shaft is slightly weak???
Posts: 357 | From: East Tennessee | Registered: Jan 2004
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Just put some broadheads on and shoot some arrows from 30 yards. That will show you alot. Sounds like your close, so the broadheads will tell the rest. Its hard to tell a whole lot from 15yards though. SL
Posts: 706 | From: Boerne, Texas | Registered: Mar 2003
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That's the way I prefer to do it as well, grouping the biggest broadheads I can find against field points.
-------------------- Braveheart Archery www.braveheartarchery.us The web home of Firefly Bows. Shipping rates start at just $1.99! Trad Gang Sponsor since 2006 Posts: 2596 | From: Kansas City, MO | Registered: Jun 2003
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Bob, without changing anything can you re-test at 20 yards and see what pattern develops?
I gave up "chasing nocks" except when the shafts almost hit the target sideways.
O.L. - "Be careful cause guess which direction overly stiff shafts will kick/group ?...Yep, they'll show weak."
Ah-er-um ya lost me there, overly stiff shafts can't group both weak and stiff at the same time
-------------------- "We were arguing about brace-height tuning and then a fistmele broke out" Posts: 680 | From: Wisconsin | Registered: Dec 2006
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If they are too stiff they will hit the riser instead of bending around the riser. It can kick them weak.
-------------------- Isaiah 49:2...he made me a polished arrow and concealed me in his quiver. Wilderness Custom Arrows Posts: 6773 | From: oregon | Registered: Nov 2005
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