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Discussion Starter · #1 ·
I tested some more with my 9" nail shooter. <br><br>Made two different tips and compared them to the original nail tip. <br><br>Round and pointy, bodkin, and original:<br><br><img src="http://i14.servimg.com/u/f14/16/32/46/92/pentra10.jpg" border="0" alt=""><br><br>The above picture shows the penetration into a wooden board (grown, not a particle board). <br><br>The round and bodkin did considerably better than the original nail.<br><br>Then I shot all of them into my archery foam target. <br><br><img src="http://i14.servimg.com/u/f14/16/32/46/92/pentra11.jpg" border="0" alt=""><br><br>The result: All three bolts penetrated exactly the same. <br><br><img src="http://i14.servimg.com/u/f14/16/32/46/92/pentra12.jpg" border="0" alt=""><br><br>I still think the bodkin would do the best job on clothes, skin and tissue.
 

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The edges deliver more energy to the target, so they can crack chainmail.
 

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The Evil Genious
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<div>did you hurt your hand?</div><div class="clear"></div><div class="signature_div">
<br>hmm nice slingshot!<br>maybe needs some sanding and oiling <img src="http://illiweb.com/fa/i/smiles/icon_lol.gif" alt="Laughing" longdesc="7"><br><a href="http://www.youtube.com/user/selfmademilitary" class="postlink" target="_blank" rel="nofollow">my Channel . . . . . Selfmademilitary</a><br><a href="http://slingshotforum.forumieren.com/" class="postlink" target="_blank" rel="nofollow">My Forum</a>
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Discussion Starter · #5 ·
I switched to a thinner board (floorboard) and also I made two more test arrows. <br><br>One nail with a very thin steel tip, and then one normal carbon arrow with a regular field tip, shortened to 9". It weighs 11.5 gramms, about half as much as the nails. <br><br>Fired all of them into the board.<br><br><img src="http://i14.servimg.com/u/f14/16/32/46/92/pentra13.jpg" border="0" alt=""><br><br><img src="http://i14.servimg.com/u/f14/16/32/46/92/pentra14.jpg" border="0" alt=""><br><br>The result: Best penetration has the thin tip - but it would cause much less damage. <br><br>Not far behind is the original nail tip.<br><br>Then the round tip. Then the bodkin. Last in the series: The carbon bolt with the field tip. <br><br><img src="http://i14.servimg.com/u/f14/16/32/46/92/pentra15.jpg" border="0" alt=""><br><br>Interesting! I think the explanation is clear - the nail designers obviously tested which tip does best regarding wood penetration. A Zombie skull is probably a lot like a wooden board - so the original tip makes a lot of sense when you hunt Zombies.
 

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You could test it on some animal bones, with less power.
 

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<div>I think it's time to get yourself some human skull analogs, Joerg. You owe it to yourself and us. <img src="http://illiweb.com/fa/i/smiles/icon_wink.gif" alt="Wink" longdesc="15">
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<br>"non impediti ratione cogitationis" <img src="http://illiweb.com/fa/i/smiles/icon_wink.gif" alt="Wink" longdesc="15">
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Failureisalwaysanoption
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Interesting (again <img src="http://illiweb.com/fa/i/smiles/icon_smile.gif" alt="Smile" longdesc="2"> )
 

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<table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
<tr><td><span class="genmed"><b>JoergS wrote:</b></span></td></tr>
<tr><td class="quote">Interesting! I think the explanation is clear - the nail designers obviously tested which tip does best regarding wood penetration.</td></tr>
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<span class="postbody"><br><br>once again i learned something. it's like "never touch a running system".</span>
 

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Discussion Starter · #11 ·
<table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
<tr><td><span class="genmed"><b>slingpit wrote:</b></span></td></tr>
<tr><td class="quote">Sharp them with`a grinder in 4 sections. it will help</td></tr>
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<span class="postbody"><br><br>That is what I did to create the bodkin tip. I even hardened the edges. </span>
 

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The Evil Genious
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<div>you could make the tip 3cm liong smaller with a tip of grinded bodkin <img src="http://illiweb.com/fa/i/smiles/icon_smile.gif" alt="Smile" longdesc="2">
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<br>hmm nice slingshot!<br>maybe needs some sanding and oiling <img src="http://illiweb.com/fa/i/smiles/icon_lol.gif" alt="Laughing" longdesc="7"><br><a href="http://www.youtube.com/user/selfmademilitary" class="postlink" target="_blank" rel="nofollow">my Channel . . . . . Selfmademilitary</a><br><a href="http://slingshotforum.forumieren.com/" class="postlink" target="_blank" rel="nofollow">My Forum</a>
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What about making a bodkin with a narrower neck? It would create some kind or barb, and make it harder to pull out from flesh without tearing everything. <img src="http://illiweb.com/fa/i/smiles/icon_smile.gif" alt="Smile" longdesc="2">
 

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i think the bodkin isn't enought fine.<br>for exemple, this is my first archery type bodkin that i forged few year ago :<br><br><a href="http://www.servimg.com/image_preview.php?i=31&u=17826958" class="postlink" target="_blank" rel="nofollow"><img src="http://i16.servimg.com/u/f16/17/82/69/58/sam_0417.jpg" border="0" alt=""></a><br><br><br>you can see that the tip is fine angled , yours is with a heavy angle, like the nail at the beginning.<br>try with fine it out in square with a hammer, by forginf it you'll not loose some weight and gain some strengh, espacially if you temper it in salty water after <img src="http://illiweb.com/fa/i/smiles/icon_wink.gif" alt="Wink" longdesc="15">
 

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Discussion Starter · #17 ·
Like this?<br><br><img src="http://i14.servimg.com/u/f14/16/32/46/92/nail110.jpg" border="0" alt=""><br><br><img src="http://i14.servimg.com/u/f14/16/32/46/92/nail210.jpg" border="0" alt=""><br><br>This is for fleshier targets... even though I hardened the "blade", the steel is low grade and the thin metal will bend easily.
 

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<table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
<tr><td><span class="genmed"><b>tokSick wrote:</b></span></td></tr>
<tr><td class="quote">Hi,<br><br>Did you try to flaten the tip of a nail and sharpen the two edges? I hope you understand what i mean.</td></tr>
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<span class="postbody"><br>tokSick & Jeorg that's nice, that shape will penetrate very good and if the tip bents or breaks during impact it will be a lot more deadlier ... I am thinking to test them with my crossbow with some little critters ...</span>
 

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Discussion Starter · #20 ·
Tested different bolts against a fir plank... the bodkin did best, the round tip came second. <br><br><img src="http://i14.servimg.com/u/f14/16/32/46/92/nails710.jpg" border="0" alt=""><br><br><img src="http://i14.servimg.com/u/f14/16/32/46/92/nails810.jpg" border="0" alt=""><br><br>The original nail did not stick in, the wood wasn't split. <br><br><img src="http://i14.servimg.com/u/f14/16/32/46/92/nails910.jpg" border="0" alt=""><br><br>I think this is not much of a surprise... nails aren't supposed to cause splits in the wood. Once again I applaud the engineering skills of the nail makers.
 
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