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I was thinking

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PK:

--- Quote from: Kegan on January 14, 2008, 07:15:24 pm ---I'm going to see if I can make some "foreshafts" with a bunch of different broadheads (not actual hunting heads, probabaly some weaker glavanized for time/materials sake) and difefretn ferules. Try them all off one arrow for the same flight pattern. I think some pine pitch and trhead tied on at an angle, like I do for hand drill bits. Shooting from a couple different weight bows.

I'm thinking of these dimensions so far: A) 1" long by 1" wide, B) 2" long by 1" wide, C) 3" long by 1" wide, and three of each, with the "ferrule" (tapered shaft) behid the point, at the middle, and almost to the tip. Giving me nine groups. I'll do the test this weekend, making the points during the week. I'll have to find a suitable arrow (or make it) and the foreshafts.

I don't know what to shoot them into though- maybe styrofoam? Would cardboard work? I dunno- any ideas?

In theory, the longest point, with the ferrule all the way to the tip should work the best, with the worst being the short blade with the ferrule behidn the point- but we'll have to see :)

--- End quote ---
Its really hard to pull them out of cardboard styro foam would be better best be thick cause like my bonehead arrows I just made went right through 3/8 plywood.
Kinda shocking gladb they didn't go into my wall

Kegan:
Hmm... even more tests ;D! I'll find what douyble bevel works best, then compare that to the same style with single bevels.

I guess i'll just hve to use whatever i can get my paws on.

Whoops- the theoretical worst would be the long blade with the ferrule behind the blade ;).

1/2primitive:
This is how I think of it.
The closer the ferrule is to the tip, the more strength there is in the tip---Thin metal is weaker than thick metal.(duh), so by adding more thickness to the tip of the head (the ferrule), the tip is more likely to be able to withstand the force better, and stay firm during the shot, ultimately leading to better penetration.

As for the single bevel, I've made a couple and really like them. They twist with the way the arrow is already going, cutting a spiral through the target, (animal or artificial, whichever ;)). And, I can't say for certain, but it follows reason that it would penetrate deeper than the double bevel because of the reduced friction.
    Sean

Kegan:
Sean- the stronger tip is one of the reason for the "short is the best" mindset in the chaper on steel points in TBB2. What you're saying is the same as mine, but I'd like to test dimensions with the difference in ferrule as well.

I was making an ax handle today and looked over at an augering bit- beveled only on one side. Makes alot of sense that if it works on wood, it'll work on meat ;D.

mullet:
  Kegan, If you flatten the tip and sharpen both sides, it will make it like a chisel and help keep it from folding over when it hits a bone

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