Homemade lead ball mold

Discussion in 'Show off your homemades!' started by Kyl, Sep 29, 2011.

  1. Kyl

    Kyl New Member

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    Howdy Folks, stufdk asked about making a lead ball mold and it got me to thinking that it wouldn't be to hard. I cast my own pistol bullets but I have never even considered making a bullet mold myself because gun bullets must be PERFECTLY round and just the right size. Making a slingshot ammo mold seemed much more practical. <br><br>For this project I used an aluminum bar I had in my scrap pile. I used about 4 different drill bits and 2 shaped bits, a 1/2" round burr and a 45 degree countersink. I also used a 1/4" tap but it's not necessary. This whole project took me about 3 hours. Here is a link to a picture tutorial. I hope this helps. <br><br><a href="http://www.flickr.com/photos/[email protected]/6195153676/in/photostream" class="postlink" target="_blank" rel="nofollow"></a><a href="http://www.flickr.com/photos/[email protected]/6195153676/in/set-72157627779886896/" class="postlink" target="_blank" rel="nofollow">Homemade Lead Ball Mold</a><br><br>I would like to post pictures onto the forum page but I can't figure it out. Any help?
     
  2. Antraxx

    Antraxx #7

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    it´s easy, just upload them somewhere and use the "Image" button when you create a topic to insert the adress.<br><br><br>i like the work, but i would have made at least 4 or 5 spots for bullets, maybe 3 higher and 2 lower ones if neccessary. all that screwing and unscrewing for only 3 balls <img src="http://illiweb.com/fa/i/smiles/icon_smile.gif" alt="Smile" longdesc="2"><br>and i´m not sure if a wide entrance for the lead is that good, because you have to get rid of a lot of stuff after the bullet is cold.
     

  3. stufdk

    stufdk New Member

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    nice <img src="http://illiweb.com/fa/i/smiles/icon_biggrin.png" alt="Very Happy" longdesc="1"> pic plz <img src="http://illiweb.com/fa/i/smiles/icon_wink.gif" alt="Wink" longdesc="15">
     
  4. WildWilly

    WildWilly New Member

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    Love the idea for your skull ammo you could use a dremel tool to carve out the lines or blank areas blank areas would be better imo of the skull you drew should work. ood idea for skull ammo I love it I would do both halves if it were me though.
     
  5. Badger

    Badger New Member

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    <strong><font color="green">You could always build a shot tower...!!!</font></strong> <img src="http://illiweb.com/fa/i/smiles/icon_wink.gif" alt="Wink" longdesc="15">
     
  6. Kyl

    Kyl New Member

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    Thanks guys, This project is just a proof of concept. I will try a much better multi-ball gang mold soon. <br><br>I think I figured out how to post the pictures<br><br>From the top.<br>Here is a piece of aluminum bar 6" x 3" x 1/2". The 3/16" holes were already in the bar so I had to work around them. The black line is where I'll cut it in half.<br><img src="http://img828.imageshack.us/img828/4103/homemadeballmold1.jpg" border="0" alt="">
     
  7. Kyl

    Kyl New Member

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    Here is the bar cut in half, bolted together and marked out to drill three 1/8" holes halfway down between the bars.<br><br><br><img src="http://img835.imageshack.us/img835/1307/homemadeballmold2.jpg" border="0" alt="">
     
  8. Kyl

    Kyl New Member

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    Holes drilled.<br><br><img src="http://img64.imageshack.us/img64/6942/homemadeballmold3.jpg" border="0" alt="">
     
  9. Kyl

    Kyl New Member

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    Here is the inside.<br><br><img src="http://img845.imageshack.us/img845/6898/homemadeballmold4.jpg" border="0" alt="">
     
  10. Kyl

    Kyl New Member

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    In this photo I have used a 3/8" drill bit to start cutting the cavities. This should help center the 1/2" sphere burr.<br><br><img src="http://img33.imageshack.us/img33/7523/homemadeballmold5.jpg" border="0" alt="">
     
  11. Kyl

    Kyl New Member

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    Here I have used a 1/2" round burr, mounted in a drill press to start cutting the cavities. Cutting strait down with the burr did not work to well but got the holes started. then I held the bar in my hand and pressed it onto the rotating burr. This worked ok but was a little sketchy. I also drilled out two of the sprue holes out to 1/4". That's the size of the burr shank. Then I put one bolt loosely though the center holes so I could squeeze the bars together around the spinning burr. This was a bit sketchy also but worked ok.<br><br><img src="http://img15.imageshack.us/img15/5655/homemadeballmold6.jpg" border="0" alt="">
     
  12. Kyl

    Kyl New Member

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    Here I used a 45 degree counter sink to cut a small funnel into each sprue hole.<br><br><img src="http://img683.imageshack.us/img683/5171/homemadeballmold7.jpg" border="0" alt="">
     
  13. Kyl

    Kyl New Member

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    Here is the mostly finished mold. I'll polish it up a bit and test it out this week end.<br>Notice it has 2, 1/4" sprue holes and 1, 1/8" sprue hole. Just for an experiment.<br><br><img src="http://img850.imageshack.us/img850/2873/homemadeballmold8.jpg" border="0" alt="">
     
  14. Kyl

    Kyl New Member

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    Now if I can figure it out, I'm going to make the "Balls Of Death. Ha!<br><br><img src="http://img713.imageshack.us/img713/2350/homemadeballmold9.jpg" border="0" alt="">
     
  15. Cuthbert Allgood

    Cuthbert Allgood New Member

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    i love the skull balls! so effing cool. you gotta sell them.
     
  16. RobertP

    RobertP New Member

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    Looks awesome can't wait to see some "death balls" molded.
     
  17. stufdk

    stufdk New Member

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    nice work <img src="http://illiweb.com/fa/i/smiles/icon_smile.gif" alt="Smile" longdesc="2"> gonna make on for my self <img src="http://illiweb.com/fa/i/smiles/icon_wink.gif" alt="Wink" longdesc="15">
     
  18. Kyl

    Kyl New Member

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    Here is an update on the ball mold. As you can tell from the photo the balls are not quite round. They are shaped more like a M&M candy. The round burr doesn't cut deep very well. I'm going to try and find a ball nosed end mill or a round ended router bit to cut the cavities, or maybe I'll fill out the missing part of the sphere with a skull carving. It's like Rufus said "there's room for improvement"<br><br><img src="http://img27.imageshack.us/img27/1467/homemadeballmold10.jpg" border="0" alt="">
     
  19. Kyl

    Kyl New Member

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    Here is my update on the ball mold. I attempted a gang mold with 16 cavities. I used a cheap 3/8" Tungsten Carbide burr off of Ebay. It cost $8. I started with the same kind of aluminum bar as before. Here it is cut and marked out.<br><img src="http://img200.imageshack.us/img200/4483/homemadeleadballgangmol.jpg" border="0" alt=""><br>Here I have drilled and tapped some index pins.<br><img src="http://img831.imageshack.us/img831/4483/homemadeleadballgangmol.jpg" border="0" alt=""><br>Here they are at work.<br><img src="http://img267.imageshack.us/img267/4483/homemadeleadballgangmol.jpg" border="0" alt=""><br>Here I've started hogging out the cavities with drill bits so the burr doesn't have to work so much.<br><img src="http://img600.imageshack.us/img600/4483/homemadeleadballgangmol.jpg" border="0" alt=""><br>Here is the carbide burr and index pins.<br><img src="http://img846.imageshack.us/img846/4483/homemadeleadballgangmol.jpg" border="0" alt=""><br><br>Here I have drilled down into the cavities for the sprue and used a counter sink to make the funnels.<br><img src="http://img823.imageshack.us/img823/4483/homemadeleadballgangmol.jpg" border="0" alt=""><br><br>Here is the finished mold. It works ok. The cavities didn't mate exactly but close enough. I had to drill out the sprue holes to 1/4" which is the burr shank size but it seems a bit large in relation to the ball size. After I cut the balls apart the flat from the sprue seems big. I talked to a master bullet caster friend of mine and he suggested that I "dimplize" the balls (like a golf ball) by rubbing them between two rasps. He said that it was a technique used by muzzle loader shooters to make smooth bore muskets shoot straighter. The dimples on the ball cause a layer of non-laminar air flow around the ball, which helps keep imperfections in balls surface from causing it to spin and reducing the curve ball effect. <br><img src="http://img834.imageshack.us/img834/4483/homemadeleadballgangmol.jpg" border="0" alt=""><br>Here are the dimplized balls. The look ugly but the irregular surface might hold some florescent spray paint well, to make some tracer rounds?<br><img src="http://img840.imageshack.us/img840/4483/homemadeleadballgangmol.jpg" border="0" alt="">
     
  20. onnod

    onnod Im from Holland, isnt that weird?

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