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» Trad Gang.com » Main Forums » PowWow » Arrow tuning results, next step?

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Author Topic: Arrow tuning results, next step?
FrankM
Trad Bowhunter
Member # 23148

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Hey guys,

I'm completely self-trained, but I shoot better now, so I decided to recheck my tune. Anyway, I did some paper tuning and shot bullet holes with 100 gr. tips at 10 ft. So, I went to bareshaft. The bareshaft was to the right at 10 & 15 yards. I went to 125 gr. tips, knowing it would throw off the paper tune. It shot better, but the fletched arrows shot center and the bareshaft was still about 5-6 inches to the right at 20 yds. Finally, I put my 145 gr. tips back on. Bareshaft and fletched hit the same place at all distances. If I didn't make any mistakes, I could group in the center of the target. I shoot instinctive. These arrows are way off on Stu's Calc.

My question is, since I'm self-taught, Is there some other way to be sure of my tune so I know I'm not covering up form flaws with a heavier point? I worry that maybe I kick the arrow to the left without knowing it. Making it seem like the arrows aren't weak.

Arrow and bow info:

2014 Samick Sage #40 @ 28” (mine length 28.5”)
Dynamic Spine: 57.8
nock height: 3/8”
brace height: 8”, FF 18-strand
3/16" cut past center (-0.1875)
1/16” strike plate thickness (0.0625)

Gold Tip Trads 15/35 30”
5/16" 145 gr. field point
20 gr. Converta Insert
11.5 gr. GT Nock
3x5” feathers (~12 gr.)
Dynamic Spine: 42.5 (Stu's Calc)
Total weight = 414.1

Posts: 407 | From: Inland San Diego, California | Registered: Mar 2010  |  IP: Logged | Report this post to a Moderator
McDave
CONTRIBUTOR 2018
Member # 10587

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Possibly you might be creeping a little at full draw. If you have a smart phone or some other way of videoing in slo mo, set it up on a tripod and point it at your bow hand so you can see the arrow as it crosses the back of your bow. See if there is any forward movement just before release. If there is, then you need to fix it. With your setup, you should be pretty close with a 100 gr point. If you need a 145 grain point, then you could be losing power somewhere, and creeping is one possibility.

--------------------
TGMM Family of the Bow

I'm a man, and I can change, if I have to, I guess.

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AZ_Longbow
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once I bareshaft back to 20 and my bareshaft and fletched are hitting together I try a big fixed blade broadhead. if all 3 arrows hit together I call it good and shoot.

--------------------
"There's only two things an arrow wants to do, it wants to fly and it wants to hit its target. It's in its very nature. Don't over think it."

Posts: 405 | From: Arizona | Registered: Jan 2015  |  IP: Logged | Report this post to a Moderator
FrankM
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I think the arrows flew better with the 100 gr. even though they didn't hit the same place with the bareshaft. Think I'll shoot the 100 gr. for awhile and see what happens.
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SAVIOUR68
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Frank check your bare shaft through paper at different yardages and I will bet you see different tears due to paradox.
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Orion
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Are you left handed? Arrows shooting to the right indicate a weak spine for a right hander. Adding point weight, weakens the spine even more.

If you're a lefty, arrows shooting to the right indicate arrows that are too stiff, and adding point weight will bring them back in line, which is what you have apparently done.

Regardless, Stu's calculator gets you in the ball park, but it simply can't be spot on for all shooters because we have so many personal shooting differences. If your arrows are shooting good for you now,( both fletched and unfletched shooting to the same point, the point you're aiming at) you're there. Don't overthink this stuff.

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stonewall
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Sounds right to me, My son shoots a 45# Kodiak he pulls 29 and shoots 30" 15-35 gts aka 600's with 125gr. heads. 25 gr. doesn't make a lot of difference on carbon but a quarter inch will.
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FrankM
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Oh geez, I think Orion got me. I'm right-handed. Somewhere I'm messing up. I'll start over again. I'll also try bareshafting from different distances.
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SAVIOUR68
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Frank go to YouTube and look up Ken Beck arrow tuning. EXCELLENT video on proper tuning
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FrankM
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Ok, repeated the exercise. I only counted shots where I felt the release was clean. Confirmed the arrows paper-tuned correctly with 100 gr. tips. A little weak with 125 gr., even more so with 145 gr.

Bareshaft results were a wash. I think by then I was getting shaky. Arrow flight seemed good with either. With a clean release, both flew like darts.

I think maybe shoot 100 gr. for awhile. What do you think?

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FrankM
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Awesome video Saviour. I found I had to adjust my nock point. They fly almost like the video but the point is a tad left and hit the target a bit left. That might be me so I'll shoot again tomorrow bareshaft with fletched. If it continues, maybe I'll add 10 gr. and see what happens.
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Pryor
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I am shooting a bear grizzly 40# with a 29" draw. I am shooting footed 30" 1535's with 145 gr points and getting good bare shaft, and paper tune. Sounds like you are pretty close. Keep shooting!!!

--------------------
Learn to work, and you can learn to do anything.

Posts: 112 | From: Colorado | Registered: Mar 2015  |  IP: Logged | Report this post to a Moderator
   

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