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Aluminum or brass arrowheads

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bownarra:
No and no :)

JackCrafty:
Since aluminum weighs almost the same as stone (very similar specific gravity) you can practice with aluminum arrowheads and switch to stone for the hunt.

Brass works fine, in my opinion. Depends on the alloy specs. It can be made to hold an edge better that wrought iron or copper, I imagine. Similar to bronze (used for arrowheads for centuries), as already stated. If mixed with aluminum, it becomes stronger.

Mesophilic:
Not sure about aluminum but brass can be work hardened.  You only need it to do the job once.  I would test extensively before going after large game, but I think if it were properly constructed (don't use thin sheet brass),  and work hardened to hold an edge and not permanently bend on impacts,  it should work fine. 

I'd want a center ridge to reinforce...look up ancient cast bronze beoadheads.  You could probably use brass bar stock and grind your bevels so that you have a thick center cross section.

But if I were going to all this trouble,  I'd just use steel.

Digital Caveman:
What about casting bronze? I think it is 90% copper 10% tin.  Just make a wax arrow head, burry it in sand, and pour molten bronze over it.  Simple, right?  :)

JackCrafty:
Will Lord uses an earthenware and lost wax technique to cast a bronze axe head in this video:

---https://www.youtube.com/watch?v=FluD0DRdK2Y

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