View Full Version : Weighted carbons
Hello one and all.
I've just purchased some timber grain Carbons at 12grains per inch bare shaft. I only want to add another 8 grains per inch or close to that, is anyone farmilar with a tubing for carbons at this weight.
cheers lads
Adam
Mate I uesd to put fly screen rubber down the shaft but now use the GT weight system so I can add weight to either end of the shaft which is also good if you like high FOC.
would there be 240grains in the gt set up mate, not farmilar with it, and how much are the weights price wise. The fly screen rubber is good no dout about it, just trying to source a lighter tubing that fits down the guts.
what sort of final weight you want adam :?:
BEAR
GlennMac
03-03-07, 08:07 PM
I've heard of blokes filling the shaft with that expandable foam in a can, don't know what it would weigh but would be lighter than fly screen rubber {I think}. Also once its in I spose it would be hard to get it out if you wanted to. I think they fill the whole shaft then let it dry then gently drill out a bit at each end for nock and insert.
Finished arrow bear around 750 to 800 grains including 125grain head.
Would also like to achieve 620 to 680grains to try.
Hey Glennmac, the only problem with that foam (im told) is it can form inconsistantly and the shafts will vary.
Has anyone used this foam on the site, what were your findings.
I am currently using 6mm awning cord in my GT's and it comes in at 4.5grains per inch.
I have found it to be a much more snug fit then some of the fly screen and irrigation tubing I've tried and doesn't rattle like the irrigation tubing, even when using 6mm tubing it rattles.
My arrows are GT XT hunters @28.5" with 125gr head and (3) 5" feathers and nock with awning cord up the guts, they come in at a respectable 515grains and fly great out of my 55# curve. :D
Hope that helps a bit.
Will cut and weigh some other tubing to campare the weights shortly.
awning cord :?:
Where could I get some Hood and at what price is it.
thanks for the input lads
Mick Smith
03-03-07, 08:42 PM
Adam
I've used 6mm black irrigation tubing with good results. It's lighter than flywire tubing. I think it may go close to what you're looking for. It's fairly cheap to buy as well.
Mick
Ok raided the shed.
materials weight per inch
6mm Awning cord 4.5gr
6mm fly screen tubing pending wall thickness between 7 and 12gr
6mm coaxil cable 12.3gr
6mm 2core elec cable 15.4gr
6mm irrigation tube 6.2gr
Hope this helps
Adam the awnign cord I got from Mitre10 cost $11 for 10m. Might be able to get it a bit cheaper if bought in larger amounts off the roll rather then buying a packet like I did but I was just trying it first before I got a whole heap and they didn't have ony on the roll at the time.
Mate I can't remember what they cost I think it was $8.00 per 12 weights.
I add 120gns to the front of my shafts which give me 648gns I use 50gn, 20gn and 10gn weights so I can get all my shafts closely matched for weight. The dozen I am currrently using have a weight difference of no more than 4gns from the lightest to the heaviest.
I now find this easier than the tubing I was using.
Cheers
Thanks piggy, Ill be sure to try them.
I have never been able to get carbons with flyscreen inserted shooting well Adam, so I did the same as Piggy with the GT Traditionals I shoot.
I bought some 50 and 20 grain weights and mucked around with them until I got a few bare shafts shooting very well and then I matched the total weight up front with a broadhead/steel adapter/insert combination.
I have been using GT Traditional "blems" 7595 shafts cut to 30 inches for a total weight of 730 grains per arrow.
Warlocke
04-03-07, 11:18 AM
Get some of the long inserts and screw in some 8/32" bolts from the rear or arrow end of the insert.
To get your weight buy long bolts and cut them until you get the weight you want.
After you have done this measure the length and cut up as many as you need.
Screw in your broadheads, or any other heads you are going to use, then screw in the bolts from the back.
Check to see which of the heads thread goes in the furthest, then screw in the bolts and mark how far they go in.
Put some Loc Tite on the thread, making sure that there is none on the very end that could lock in your heads, then screw them in and let the Loc Tite dry.
This will increase the end weight and soften the spine, so it's a good idea to buy the next spine rating when getting shafts.
FentonW
04-03-07, 11:31 AM
You can get 4mm dowel in pine and ash from most hardware shops that do the job, fairly consisitant in weight and will put you almost spot on to what your looking for. Over the years I have tried just about everything that can be done to carbons, some with good results and some that just not feel right. The doweling worked when I wanted super heavy shafts and using heavy weights up front was the mosat successful method. Try the dowelling, cheap and easy with the added bonus that it deadens the vibration of the shaft because it is a solid material and creates a super quite arrow. Worked for me.
Cheers, Fenton.
Like that idea Warlocke, Ill be sure to give that one a try too.
Fenton, I have used the pine dowell in the past with good results as well. I found it very hard to break a carbon even on rock with the dowell.
Thanks for the input guys plenty of ideas and ways to add weight to carbons for anyone interested.
Please keep em coming.
Adam
Adam,
I use them 100gr brass insert, 100gr steel broadhead adaptors and 190 grain concord up front of a 11gpi gold tip for a mass weight of around 740gr, they fly well from the curve :D
BEAR
Bear, is that arrow weight pre cyclone, or once the wet has filled the arrows with water :wink:
Bear whats the FOC on those shafts with the broadhead on ?
Cheers
Paul
I think around 22% foc piggy, they fly well :D
BEAR
Thanks Mate, I'm currently shooting around 20% foc.
Cheers
ozzyshane
06-03-07, 06:16 PM
Adam ive taken buff with this set up a 75/95 GT with the rubber fly screen with a 200gr head about 800grs they make a foam fly screen same as the rubber one but a lot lighter Thanks Shane
they make a foam fly screen same as the rubber one but a lot lighter Thanks Shane
Interesting, very interesting mate. Any ideas on who makes the stuff or stocks it. Would be good for silencing arrows even if your not looking for the big weight.
Adam
ozzyshane
06-03-07, 08:44 PM
Adam a mate from QLD sent me some but ive seen it in Bunnings now.Thanks Shane
Adam I tried that also and go it from clark rubber.
I still have some mabey enough for a couple of shafts if you want it Pm me your details.
Cheers
Paul
Adam,
I was playing around a while back with red wall plugs(6mm), you can buy it by the mtr but will have trouble pushing it through the shaft as it compresses. If you run a string through your shaft and fix it to the wall plug material via a small headed screw you can pull it through the shaft by warming it in hot water and it will be tight without any rattles, or you can just push pre cut lengths into each end of the shaft.
Weight wise I can't quite remember but it is lighter then fly screen rubber.
hope this helps
Wellsy
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