Primitive Archer

Main Discussion Area => Arrows => Topic started by: PeteDavis on October 11, 2008, 12:20:50 pm

Title: Front Loading Tonkin Shafts
Post by: PeteDavis 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

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Title: Re: Front Loading Tonkin Shafts
Post by: Pat B 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

Title: Re: Front Loading Tonkin Shafts
Post by: PeteDavis 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

Title: Re: Front Loading Tonkin Shafts
Post by: Pat B on October 11, 2008, 12:51:37 pm

Don't use all your pressure flaker nails! ;)

Title: Re: Front Loading Tonkin Shafts
Post by: PeteDavis on October 11, 2008, 07:15:21 pm

All loaded, 140 grains up front. PD

(http://www.fototime.com/106D5F7731A003F/standard.jpg)

Title: Re: Front Loading Tonkin Shafts
Post by: ZanderPommo on October 11, 2008, 07:39:54 pm

lookin' great! now go stick some venison

Zander

Title: Re: Front Loading Tonkin Shafts
Post by: TRACY on October 13, 2008, 09:23:12 am

Looks good to me. Nice cane/flint arrows.

Tracy

Title: Re: Front Loading Tonkin Shafts
Post by: nonamesleft47 on October 13, 2008, 10:33:17 pm

How long are your shafts cut?  Great looking arrows.

Title: Re: Front Loading Tonkin Shafts
Post by: mullet 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.  :)