changing to carbons - durable and thin?--- the search goes on UPDATE

[Big Sneaky]

I shoot the 100gr brass inserts and a 125 gr point/broadhead.  I shoot Axis 300's and they finish out at 590 gr.  The Beman MFX weigh more than the Axis per inch so if you use the 100 gr brass insert and 125-175 gr point you can get an arrow to finish out plenty heavy.  Hope this helps.

[saumensch]

thanks, it helps.

[sweet old bill]

Hi all I guess I will tell you all that I also finally went to the dark side from ALum to now shooting 100% carbon.

 Now where I have the issue it sure seems that the big problem with carbon is that if you follow the chart you may pick the wrong spine. I have been using now for about a full year the Bemen in 500 spine, fletched with 3 5.5 bananna cut fletch and 125 gr points. The bows I am using are all in the range of 46 to 52 lb at 28 inch and I draw 29 1/4, shaft are cut to 30 inch. I have not had one nock break upon release and or with 3D or even some 1/2 doz I made up for stumping that has a 1/2 inch outsert of alum 2117 epoxy over the carbon 500 shaft with 125 gr blunts. These bounce off trees without breaking, just do not shoot to close and or you may get a flash back and hit in the head.

I now have added internal weight that makes the arrow weigh in at close to 550 gr each. This was done by using a 2 inch 10 x 22 alum bolt with head cut off and 1/8 poly rope to fill the inside of the arrow carbon shaft with 1/8 inch long so as you push in the nock it makes nothing move inside the shaft. So far all is working well. I did have to cut on one shaft another piece of the poly rope as I could hear a clik as the arrow hits the 3D target. Now all is soundless as I shoot.

I wish there was a chart to show what results I do get by adding the weight, I am sure there has to be incease in peneration and a loss of FPS in speed of the arrow. But nothing that I can see. Being a retired IBM Eng, the idea of just keep adding weight upfront sure does seem to kill the positive reason for going to carbon. I should stay with my 2016 xx75....

lets keep having a full discussion on this.

Bill ( SOB )

[saumensch]

Hello again,

so after i got time to do some testing and glueing, i wanted to share my results with you.

I am now shooting an EAston ST.Epic N-fused 400.

The arrow is durable, we tested it by shooting it against a concrete wall from 10m, no problem except for one nock breaking on impact (out of 8 shots).

I only added some 6mm polyrope on the full arrow length. Then my 125gr. tips, normal insert and nock.
They weigh in at 560 somewhat grain. Bareshafting them i got hits a little low and right. on 15 meters it was aprox. 10-20 cm low and right.
The nocks of the bare shafts were pointing left and high.

If anyone could comment on this i´d apreciate!!

Enough grain for a hunting arrow?

what or should i make adjustements according to the bareshafting test? the fletched arrows go out straight and just were i want them.

Do you think i would need more FOC because i didnt add tip weight or front insert?

Thank you alot!

Kind Regards

[tiur]

Breaking nocks:
mfg by injection moulding material Plastic.
Looking at Easton knocks - looks like an acrylic material, Grizzly knocks and Goldtip knocks are not an acrylic mat. Could we have some specs from the mfg? Are the the knocks produced from virgin material? is the material certified and where is these little puppies made?? I would hate to blow up a nice pair of limbs with cheap knocks.
Saumench looks like a weak reaction to me.
TX
Asgeir

[saumensch]

tiur,

yes it is a weak reaction, but it is said that a slight weak reaction would be good because the fletches stiffen the spine alittle,
I just dont know how "slightt" this weak should be.

[tiur]

max 1" - 25mm
good luck
Asgeir