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cnc lathe machining bullets?

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  • #16
    h0use
    Calguns Addict
    • Jul 2009
    • 5783

    Originally posted by 1in9twist
    Slight hijack Check this out.

    http://www.youtube.com/watch?v=RnIvhlKT7SY
    That's what I call a custom made helmet! That's awsome!

    Comment

    • #17
      brando
      Veteran Member
      • Feb 2006
      • 3694

      Monolithic solid bullets are very popular in big bore and ELR cartridges, but they are tricky to make and use*. Manufacturing them to precision with CNC lathes isn't the hard part, it's the material and temperature control that gets tricky. LRBT pioneered the use of copper/nickel alloy solids that are extremely uniform in density distribution (ie uniformly balanced). And part of making sure a bullet that's being lathed stays that way is controlling the temperature. That's why many prefer less temperature sensitive materials for stock.

      In the 90s I shot some .50BMG precision ammo in Israel that used a solid brass bullet. It didn't hit as hard as some of the other bullets we shot, but it had a higher BC and required less elevation to hit the same distance, if you know what I mean?

      Nowadays for .338LM - .50BMG ELR bullets solids are really popular, particularly because they can be made long and uniform for high BC performance. They aren't suited for HTI applications in the military, but for hitting paper or steel beyond 2000m they are the best choice.

      *some rifling profiles favor solids vs jacketed bullets
      Last edited by brando; 10-13-2011, 2:44 PM.
      --Brando

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      • #18
        Eargasm
        Senior Member
        • Jul 2009
        • 611

        Originally posted by popeye4
        Probably copper. I don't think it is illegal to use brass, but it might not be smart.
        Elite Ammunition ran into some trouble with the ATF recently over their manufacturing of .223 brass bullets. The ATF says that .223 is a pistol round.

        BATF Classifies .223, 6.5 Grendel and 6.8SPC as Pistol Round

        BATF and EA Recent Finding.

        EA has had to remove our Trident bullets in .223, 6.5 Grendel and 6.8 SPC. The BATF has ruled that all of these cartridges are now pistol cartridges. Since they are now pistol cartridges their construction now falls under the content and construction limitations of the 68 GAC and pistol cartridges.

        Currently from other bullet makers like Barnes, solid .223 caliber bullets are still being manufactured and sold . We are working with our BATF IOI person to find out the following,

        A) Is Barnes bullets and all other maker that constructs solid bullets in .223 going to have to stop.
        B) If not then why do we have to stop since out basic shape and metallurgical content of our PFP bullets are the same as theirs?
        C) Since they are now handgun caliber limited how does Magtech solid copper pistol bullets not fall under the 68 GAC as AP?
        D) If Solid copper is not considered a violation of the 68 GAC in handgun bullets then it should also be not a violation of the 68 GAC to make EA’s PFP bullets from solid copper as Magtech does.

        Those who have T6 ammunition and PFP bullets will be contacted by the BATF to recover any bullets or ammunition that have not been FIRED yet.

        I apologize for this inconvenience and hopefully we can get this matter straightened out one way or another.

        Jay Wolf
        Pr. Elite Ammunition
        Here's the letter:

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        • #19
          30Cal
          Senior Member
          • Jan 2006
          • 1487

          My grandfather had to machine bullets for a 22-250 that my dad had for a while--the only other bullets he had access to at the time would come apart in flight. Rifle got sold--too expensive to feed.

          Comment

          • #20
            edgerly779
            CGN/CGSSA Contributor
            CGN Contributor
            • Aug 2009
            • 19871

            AS long as you don't use them in Condor area without having dfg approval should be fine.

            Comment

            • #21
              ExtremeX
              Calguns Addict
              • Sep 2010
              • 7160

              Originally posted by Us3rName
              There's just something about watching a CNC machine go to work.
              +1

              Its really something
              ExtremeX

              Comment

              • #22
                Munk
                Senior Member
                • Jun 2010
                • 2124

                All-brass bullets for 50 BMG and similar are not unheard of, and in some cases can be had as milsurp (I think french BMG surplus was brass? Can't quite remember). I've also seen them in commercial loadings.

                The extra precision of a nice milled bullet is freaking sweet though.
                Originally posted by greasemonkey
                1911's instill fairy dust in the bullets, making them more deadly.

                Comment

                • #23
                  Fjold
                  I need a LIFE!!
                  • Oct 2005
                  • 23016

                  A lot of custom bullet makers make lathe turned bulets for large bore rifles for target and game shooting (especially in Africa).
                  Frank

                  One rifle, one planet, Holland's 375




                  Life Member NRA, CRPA and SAF

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                  • #24
                    bohoki
                    I need a LIFE!!
                    • Jan 2006
                    • 20825

                    looks like this is the best option for anybody wanting a silver bullet

                    Comment

                    • #25
                      Joewy
                      Veteran Member
                      • Jul 2010
                      • 2550

                      Ive turned them. But brass isnt heavy enough for real world use on soft targets. Only paper and concrete....
                      If you want to make bullets just use the cnc machind to make you a nice bullet mold and use lead....
                      Works every time.
                      Originally posted by Turbinator
                      Hold on bud, Calguns is a privately owned forum, on which we are all guests of the owner. We have no freedom of speech here, period.

                      Turby
                      Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy.

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