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Any flintknappers out there

kbetts said:
I've seen some really nice stuff made of old tv screens. Scary sharp.
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There's something about the molecular structure of glass and obsidian that it can obtain a sharper edge than steel can.
I've heard that eye surgeons use obsidian for delicate eye surgery. Is that true?
I can attest to how sharp glass can be. I used to work in a beer bottling plant and the glass the returnable beer bottle is made of can be absolutely scary sharp.We worked with broken bottles constantly and I've seen some extremely nasty cuts from broken and exploding beer bottles. The glass of throw-away bottles doesn't break with the sharp planes that returnable glass does.
 
JSEXTON23 said:
If anybody wants to get into knapping, next time you see a toilet somebody is throwing away, go take the reservoir lid. Johnstone. It’s great for practicing.

For the OP, did I see some Jasper or some Buffalo River Chert in there?
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Some of the prettiest and most colorful arrow heads I have ever seen were made from fiber optic material.
 
Heydeerman said:
It is probably tougher then we think. Especially on a smaller head. But what would happen if a small sliver was ingested?

I’m ok shooting steel. I haven’t figured out how to mount flint on a carbon arrow yet :)
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If we bend steel blades I would only assume (don't know) that glass would not handle any torsional load or bone hits well at all.
 
Weldabeast said:
If we bend steel blades I would only assume (don't know) that glass would not handle any torsional load or bone hits well at all.
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I have seen pictures of the wound caused by obsidian. They would rival the best steel head made. I have also seen one nasty cut from a slip while knapping that required some serious stitching to repair. I know it will do the job. I would be afraid of it hitting bone and blowing up inside an animal I intended to eat. That stuff might do some damage if accidentally eaten.
 
Weldabeast said:
If we bend steel blades I would only assume (don't know) that glass would not handle any torsional load or bone hits well at all.
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Yes, but a bent broadhead will have horrible penetration. A brittle stone head may chip or break but only if it hits heavy bone but in the end it could still have better penetration than the bent steel head.
 
Allegheny Tom said:
Yes, but a bent broadhead will have horrible penetration. A brittle stone head may chip or break but only if it hits heavy bone but in the end it could still have better penetration than the bent steel head.
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Sounds cool theory.... Not sure if that can be proven

How well do they survive? If u shoot a deer and the arrow hits something hard either inside the animal or on the ground after pass thru do they chip easy? Once clipped are they able to be repaired?

I would totally kill something with a stone point.... Not sold on the glass
 
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I’d take glass over stone personally. Not trying to hit a shoulder.
 
I think we need to be more specific when we talk about shot placement and the term “shoulder”.

I personally aim for what most people call the “shoulder” and I’m confident that my arrow setup, and a stone or glass point, goes right on through both “shoulders”. If I happen to hit the humerus, I’m also confident that I go right in through that with enough penetration to cut the major arteries leading to and from the pulmonary system. I might not be sticking in the dirt on the other side, but I also know that deer isn’t going far either.

So, are we talking stone point vs scapula? Or stone point vs humerus?
 
I've seen pictures of stone points embedded in bone. If a stone point say hits a rib and dings up the edge that's just self sharpening. You cant roll the edge with flint
 
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