Loading a carbon arrow: Rope is too light.

[Gordy]

I'm about 100gr shy of where I want to be and I don't want to add more tip weight.

If anything I would like to increase spine too.

Has anyone tried the minimally expanding foam ? Think I might give it a shot.

Any other ideas ?  My 5/16 carbons loaded with poly rope are hitting 585 with 125 tip. Looking to hit 700 with a well balanced and stiff arrow.
Shooting apprx 70-72 pounds

[Scott Smith]

Try a couple pieces on weed eater line shaft length.

[Bonebuster]

I have used the expanding foam.

Too inconsistent in finished weight. I also found that SOMETIMES, it dramatically increased the spine. Sometimes it did not.

Once the foam is in..... its in! On the plus side, my nine yr old has some BEAUTIFUL Carbonwood
5000`s. Indestructible.

As far as I`m concerned, not recommended.

[Terry Green]

Gordy...what's your arrow lentgth BOP?

If I got on close, I'll send you a 630 grain Arrow Dynamics and see how it flies.  I've not seen any spine/flight changes using the aquarium tubing to get to that weight......and if you insert weed eater line in it you should be able to get to 700 grains, again, with no spine/flight changes.

Gotta ask ya, with 700 grains being your objective, why are you not wanting to add any more weight to the tip beyond 125 grains?....is it just THAT particular arrow you are worried about changing the spine on?

[One eye]

I have used the Gold Tip weight system with good luck.

Dan

[Missouri Sherpa]

You could fill them with sand, vibrate them a little to settle the contents, top them off full and cap the ends with epoxy.  You should have a real heavy arrow, and I am guessing an increase in spine.  I personally use the tip weights and a 160 grain broadhead to come up with a 600 gr arrow, and I have never tried using sand.  I used to use the thickest heaviest weedeater line and that worked pretty good for me before I went to the weighted tips adaptors.

[**DONOTDELETE**]

DON'T use tire sealant.....been there, done that...WHAT A MESS!!!!  

[geno]

3Rivers Carbon Arrow
Weight Tubes
 
 
See Larger Image
   If you're looking for a slick way to bump the weight of your carbon or aluminum arrows, try these new new weight tubes. They're designed to increase your penetration. Just drop one inside your shaft and trim to fit. No glue needed. Available in 3 (Black), 5 (Gray), or 8 (White), grains per inch. The 5/16" size fits all standard 5/16" carbon arrows like: Carbon Express, Gold Tip, Beman ICS, and Vapor. The 1/4" size fits the small HIT system carbons like: The Easton Axis series and the Beman MFX Heritage series. One dozen per pack. Easy to use. Easy to install.

 
 
 how well do these work?

[TaterHill Archer]

aquarium tubing

[MikeC]

Aquarium tubing or weed eater line which ever you have handy.  Why spend extra money or complicate things.  Either will do the trick and only what you want...increase arrow weight and nothing else.

[PrarrieDog]

I used cotton clothesline (rope) with sucess.
Prarrie Dog

[Gordy]

Thanks for the ideas guys.

Terry - My concern with weight up front is the spine getting too weak.  I've been shooting this arrow out of my 61 pound longbow, loaded with rope 30.5"bop, Cabelas Stalker Extremes 65-80, The arrow is too stiff for that bow even with 145's....and too light for the recurve at 585gr
My concern is going to the 71 pound recurve, that it will spine too low. I'm pulling the recurve 29.5" ...so figure about 73-75 pounds.

For reference, I've loaded some 2317's with 3/8" poly, but they are just about 800 gr. and I hate the thin-wall. But they do fly well.
My objective with this experiment is to get the stalkers working well.  I like the diameter, and like the availabilty/cost of these shafts.

Otherwise I think I'm looking at 2419's ...which are pretty cool, but I think I'd prefer the carbons if I can get them to work.  Cotton rope sounds good, but wouldn't it absorb moisture ?

Thanks for the help

[JEFF B]

you could use tuna fishing line 400LB just cut it off the lenght of ya arrow and slide in side the shaft it works and it is cheap as chips.      

[Gordy]

I wonder if we have any 400lb mono in MN ? ...probably sold out with the opener coming up this weekend      

Think I'll hit fleet farm for vinyl tubing, maybe try to double wall it.

Thanks for the ideas guys ! ....keep em coming !

[beachbowhunter]

With the availability, low cost and quality of the weight tubes I really don't understand why everyone seems to try to do a work-around with loose fitting stuff like rope and fishing/weed wacker line. Unless you lose the arrow, you'll have them for life. Oh, well to each his own!

[Gordy]

Norb, the poly rope is cheap (about $4), available at any hardware store and fits very tightly in the shaft.  Also, almost a perfect 100gr for 30" length of 1/4" poly.

It's a traditional challenge thing to try and find something in my own garage to fix my arrows....next is the hardware store, then 3 rivers