Hey All, I remember vaugely someone talking about glueing a carbon shaft inside an aluminum shaft in order to make a super strong and heavy shaft. Most likely for Africa, or some other special hunt.

Anyone have a link or the requirements/ know-how to do this? Entertaining the idea of a buffalo hunt in the next year or so...:biggrin1:

I've made a couple, but there way overspined for my bows. What's the lbs you think you would be shooting and what DL? There may be another way.

The ones I made were 2018s over black max 400s. I had thought they were over 700 grains, but since I have a scale now, I just weighed them. 813 !
Thats a crazy heavy arrow. I'd go the EFOC route.

Red, I would be shooting 70-75 lbs @ 29.25 or 29.5". What is the 'other route'??

Just a heavy head on stiff enough carbons and "foot" the tip area with aluminum. You could also use brass inserts and/or adapter screw-in weights to bump up the tip weight. You can get or make up heads to be up to 300 grains. The brass inserts come in 50 or 100 grains depending on which shaft you want to use. I don't think you'll need an arrow to be 7-8oo grains to do the job. I do think a shaft like the easton dangerous game (if thats right) and a 200 grain head would do nicely. Those dagerous game shafts are heavy enough, 15 and 17 GPI.

What does it mean to "foot" the tip area?

Sorry for the delay, was stuck on a 24 hour shift. This is footing a carbon with aluminum. Lenth can very to suite your needs, I wanted these just about a 1/4" longer than the depth of the insert. You have to keep lenth and spine in mind, these are out in front of the rest so there's no problem. If I could do them over, I would use a taper tool to better taper the back edge of the aluminum piece, they hang up in a bag target a little when you pull them. 1916s would have been a tighter fit but I had the 1913 pieces.

http://i262.photobucket.com/albums/ii107/red44photos/DSCN2021.jpg

That footing does'nt add much for weight either. But if you used a brass insert of 100 grains, and a 150-250 grain head, you have all the weight you want. You just need to have arrow spine enough to handle that tip weight. The idea behind EFOC is that it gives better penetration than the same weight at say 10-15% FOC. I can only guess it's because of less weight to "whip" the nock end on impact with heavy bones where a change in shaft direction might take place.

Just something for you to read.
http://www.tradgang.com/ashby/2007update8.pdf
He shoots stuff like cape buffalo with longbows. He's a nut. :biggrin1:
Our deer don't present much of an issue, but big boned stuff where penetration is a premium, it may apply.

Thanks red for all the info you have provided. I have read the Ashby reports, that's pretty much what got me thinking about KE and the EFOC concept.

I got some 180 grain Snuffers mounted on beman hunters with 50 grain inserts that will see the woods this fall. Not really extreem FOC, but they should be quiet and deadly. Good luck on the buffalo.

I got some 180 grain Snuffers mounted on beman hunters with 50 grain inserts that will see the woods this fall. Not really extreem FOC, but they should be quiet and deadly. Good luck on the buffalo.


Them Snuffers look bad, very bad. :rockon:

Thanks for gesture of luck. Hopefully, I will able to go in the next year or so.

Oh my, your more than welcome. I love this stuff. :rockon:

Hey All, I remember vaugely someone talking about glueing a carbon shaft inside an aluminum shaft in order to make a super strong and heavy shaft. Most likely for Africa, or some other special hunt.

Anyone have a link or the requirements/ know-how to do this? Entertaining the idea of a buffalo hunt in the next year or so...:biggrin1: in the early 80's I purchased what they called big Daddys, super strong, when I finally broke one I cut it apart to see how it was made, 2117 easton shaft with about 8'' of another shaft glued in the point end, prob like 2017, weight forward ,And since you usually bent alum arrows in the ist 8'' very Tough!

Hmmm. Very interesting concept.