weight forward dipping?

[Konrad]

#3024

Once again, the good doctor has proven to be right. He states alloy shafts are more difficult to tune to any given bow. While attempting to maximize my FOC balance point indeed found my Easton 2413’s quite sensitive to point weight.

Of course, trajectory degraded but to my mind the larger group sizes proved counterproductive. For the time being (until funds for a batch of GrizzlyStik shafts and Grizzlies to match), I will continue to practice with my current set up.

I will be lightening both fletching and nock which will move FOC further forward which I suspect will not affect group size negatively.

When researching the construction of traditional wood arrows, I read about dipping shafts with coatings of various types.

I wonder, will dipping the first 9 inches of my 29 inch alloy shafts (possibly multi-coating) promote FOC without negatively impacting group size?

What do you think?

[Bloodless]

#20688

Konrad — it seems nobody here has tried that one. Dipping wood shafts full length is a common way to get weight up so that a dozen shafts all weigh the same. But how it would work on aluminum is in question — it might rub off on the shelf and in the target, in an uneven way. Easy way to find out about FOC is to go to the chart and measure foc on a shaft, then dip it and try again. But just screwing on a heavier head sure seems easier! bb

[Bert]

#20796

Konrad- Unless you can find some affordable depleted uranium or lead paint, I don’t think you could add enough FOC to matter- besides the ugly factor!
I’m shooting 2018’s out of my 50# longbow and still experimenting as you are with Foc- bareshaft tuning reveals that these are too stiff but adding a 200 gr.plus field point or Grizzley 160+ aluminum adaptor+ JB Weld yields good tuning.
Dennis Kamstrain , in the Aug/Sep “Traditional Bowhunter” page 96, suggests adding an 8/32 machine screw to the back of the insert and cut to tune. They are available at any hardware store in brass or steel, and they’re cheap! Also 3Rivers and Tradtech Archery sell steel BH adaptors up to 125 grains for a reasonable price.
Since you’re shooting 2413’s, that’s almost the thinnest shaft wall diameter you can go and adding more weight to the front will weaken the spine so you may have hit the old proverbial brick wall with your set-up.
By all means continue your testing and report back to us as to the results- more info!more info as the good Dr. Ed states.
One more month to hunt here in GMU454!- my best to your Chief Financial Officer. I have one too!
Good hunting- Bert from the historic Carnation/Duvall area!

[Chris Shelton]

#24347

You could try the weight tubes? But just get the heavy ones and glue them in the front? Just spitin in the wind here, lol. I have never really thought about it??? Best of luck!

[Konrad]

#26712

Greatreearcher wrote: You could try the weight tubes? But just get the heavy ones and glue them in the front? Just spitin in the wind here, lol. I have never really thought about it??? Best of luck!

It’s not a bad idea. The over-all weight of my completed arrow is 480 grains. Perhaps by combining a lighter tube in the rear and a much heavier one in front…I could still maintain my “tune” and receive the benifits of FOC.

Sounds like the fun is not over! I love to play. My wife says I’m a Tweaker.
I had resigned myself to waiting on some GrizzlyStiks.

[Chris Shelton]

#31964

ha, now we are getting somewhere your idea is much better, I definatly like that alot more, so there is no chance of the tube coming loose!! I might even try that myself, my shafts are just over 400 grains! They could definatly use some weight. I might have to wait untill after the season as to not mess with my shooting in the middle of my season! Great brain storm! Thank god for tweakers, again best of luck!
Chris

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