Author Topic: Front Loading Tonkin Shafts  (Read 5067 times)

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PeteDavis

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Front Loading Tonkin Shafts
« on: October 11, 2008, 12:20:50 pm »
Hi Again-

I have found that my Tonkins fly best with 130-140 grains of weight at the end of a long shaft. I am shooting a 1971 Bear Super Kodiak that shoots 47# at my actual draw.

I knapped a pile of points. I am finding to achieve these desired weights I seem to be getting pretty large points-and I am somewhat concerned that they may be a tad large for the weight behind them.

I had pre-drilled the centers of Tonkins to accept screw-in field points for flight tests. The holes are 3mm. I had the idea to use my 7/8ths wide stone points which are an efficient size at 106 grains. I cut up a few sections of 60/40 solder and found that I can drop a 3/4" section of the solder into the holes and add additional front weight to bring the points up to an actual 133 grains of front-end weight.

Does anyone see anything unethical with my solution? I'll field test and report back.

PD

>>>--------->

Offline Pat B

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Re: Front Loading Tonkin Shafts
« Reply #1 on: October 11, 2008, 12:37:39 pm »
Your solution sounds fine. You could also use lead bird shot to fill the center and add weight. Pat
Make the most of all that comes and the least of all that goes!    Pat Brennan  Brevard, NC

PeteDavis

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Re: Front Loading Tonkin Shafts
« Reply #2 on: October 11, 2008, 12:48:53 pm »
Thanks Pat. I tinkered some more and discovered that a 1 1/2" copper flash nail yields a perfect 35 grain plug when the head and tip are removed. I think I'll use the copper since it will require a slightly longer but lesser diameter hole. I suspect most of the strength in the cane shafting is near the outside anyway. Again, I will report back.

PD

Offline Pat B

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Re: Front Loading Tonkin Shafts
« Reply #3 on: October 11, 2008, 12:51:37 pm »
Don't use all your pressure flaker nails! ;)
Make the most of all that comes and the least of all that goes!    Pat Brennan  Brevard, NC

PeteDavis

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Re: Front Loading Tonkin Shafts
« Reply #4 on: October 11, 2008, 07:15:21 pm »
All loaded, 140 grains up front. PD


Offline ZanderPommo

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Re: Front Loading Tonkin Shafts
« Reply #5 on: October 11, 2008, 07:39:54 pm »
lookin' great! now go stick some venison

Zander

Offline TRACY

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Re: Front Loading Tonkin Shafts
« Reply #6 on: October 13, 2008, 09:23:12 am »
Looks good to me. Nice cane/flint arrows.

Tracy
It is what it is - make the most of it!    PN500956

Offline nonamesleft47

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Re: Front Loading Tonkin Shafts
« Reply #7 on: October 13, 2008, 10:33:17 pm »
How long are your shafts cut?  Great looking arrows.

Offline mullet

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Re: Front Loading Tonkin Shafts
« Reply #8 on: October 13, 2008, 10:37:12 pm »
  Pete, I'm shooting 70# splined arrows out of my 60 pound bow. They are Tonkin,33" long with 170grn, stone points.They shoot straight as an arrow.  :)
Lakeland, Florida
 If you have to pull the trigger, is it really archery?