3Rivers Archery




The Trad Gang Digital Market














Contribute to Trad Gang and Access the Classifieds!

Become a Trad Gang Sponsor!

Traditional Archery for Bowhunters




RIGHT HAND BOWS CLASSIFIEDS

LEFT HAND BOWS CLASSIFIEDS

TRAD GANG CLASSIFIEDS ACCESS


Main Menu

4 Fletch Bouncing off shelf

Started by 2nocks, September 24, 2014, 01:53:00 PM

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

2nocks

Hey Guys, I read a bunch of the four fletch posts on here and picked up some 4" parbolics in the classifieds. I've fletched up a few 1820 aluminum shafts with 75x105 and 90x90. They both seem to bounce off the shelf the 75x105 more so than the 90. My 3 fletch wood and carbons do not bounce so I haven't moved my nock height yet.

Wanted to post a few pictues and see if it looks like they are aligned ok or if maybe its another tuning issue I should sort out.    

2nocks


MCS

Turn your knock 90 degrees. That should help.

Scott E

I would say go ahead and raise your nocking point and see what that does. It probably will help the ones that are bouncing and probably wont hurt the ones that arent bouncing.
Self reliance cannot be bought

Rock 'N Bow

Have you considered a 2 fletch set up? I read a recent article in Traditional Bowhunter where the author fletched only the lower outer vane and the upper inside vane. Even vanes didn't make contact with the shelf or strike plate and achieved great arrow flight. I've been considering this myself so I can still shoot vanes in less than ideal weather conditions.
Todd Henck Longbow 68" 58#@28"
Dave Johnson Longbow 66" 60#@27"
Northern Mist Ramer 64" 50#@27"
Northern Mist Classic 68" 52#@28"
Shrew Hill #1 "Alpha" 67" 48#@28"

BOWMARKS

On the 75 - 105 I would turn the nock 90deg. on the 90-90 would not make a difference.
Kanati Long Bow 56"-45#@27"
Hoot's Long Bow 56"-45#@27"
Shrew Classic Hunter 56"-47#@28"


TGMM Family Of The Bow
United Bowhunters of Penna.
Compton Traditional Bowhunters
Professional Bowhunters Society

2nocks

Thanks guys. I'm going to just raise it and turn the nock on the 75-105. Of course they're swaged end aluminums with glue on nocks    :banghead:

Tajue17

1820 alums what weight you shooting just want to be sure its not spine,  anyway when im tuning an arrow like and aluminum or wood where you cant turn the nocks i will only use a tiny drop of glue on the nock so i can break it free if ithe fletch is catching and rotate it more once i find what the bow likes i glue it up good.   Finally make sure your shelf is not velcro and make sure you put extra dabs of glue over the front of the quills.
"Us vs Them"

Hermon


The Whittler

I have done 60-120 with a right wing Jo-Jan and it worked great.

2nocks

Tajue i tried them out of a 45 and a 50 pound bow.

Herdbull

I have shot 2219 with 4 x 5 inch Right Wing feathers mounted 75 x 105 with nock aligned as you have shown for 30 years. But I did notice the quill would eat away at the outer edge of the shelf. I elevated half of the shelf (basically the width of the arrow) about a 1/4 inch, then cutting a slit in the shelf matterial and laying the outter edge back flat to the shelf. This extra clearance worked wonders. It also help with additional clearance when wearing a heavy glove during cold weather for bows with very tight shelf to grip style. Mike

2nocks

Thanks Mike.  I'll have to give that a go also.

wingnut

I'd sure shoot a bare shaft out of the bow also to make sure it's the right spine and alignment before assuming the problem is the fletching.

Mike
Mike Westvang

Hud

The theory is more drag, faster correction, but it can result in greater feather wear.  Sprinkle some Tac or baby powder around the window, rest and shelf to see where it is hitting. Also, agree with Wingnut, that  shooting a few bare shafts is a good idea to check spine.
TGMM Family of the Bow

JimB

I agree with Wingnut.Did you shoot those arrows before the 4 fletch?That's a heavy walled shaft and may be too stiff.It might be worth adding 25-50 grs of point weight and see what happens.I've never had 4 fletch cause any bounce.

2nocks

I haven't shot them before. I tried 100 and 125 gr points. And I tried 200 gr. 200 gr basically crashed and burned, made the problem much worse. Maybe somewhere in the middle would help.

wingnut

What are the specs of the carbon arrows that fly well from the bows?  Also what are the specs of the 1820s  Length etc.?

Mike
Mike Westvang

2nocks

3555 with 175 up front, have weight tubes fly well. Cut to 29. 2016 cut to 29 fly well, I can shoot 145 or 175 in the 2016 without a noticeable difference. a 5575 arrow with 275 up front also flies well. not noticing any proposing. These are all 3 fletched.

wingnut

Ok, now I see the problem.  The 2016 that fly well have a dynamic spine of 52-56 pounds.  The 1820 has a spine of 40.  That's a big difference.

The 1820 is way underspined for this bow.

Mike
Mike Westvang


Contact Us | Trad Gang.com © | User Agreement
Copyright 2003 thru 2025 ~ Trad Gang.com ©