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Thread: [q] tool to add lube grooves

  1. #1
    Boolit Mold
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    [q] tool to add lube grooves

    I have 9mm mold (158g) for powder coated boolits.
    Bought it on one of the group buys here. At the time, I was optimistic enough that I thought I have skills and time to powder coat.
    I am admitting that my aspirations went too far.


    so wanted to know if I can, some how, use my mold, that casts without grooves -- and then add groves with another tool.
    Is that possible, what tool could do that?

    thx

  2. #2
    Not really, at least not in volume. But with some help I am sure we can get you powder coating acceptably. I found one of the most critical parts was the oven. The small ones list as convection but they really mean "heat rises". Getting one of the slightly larger ones with a true fan active convection makes a world of difference. Grab a roll of non stick aluminum foil while you are there. Next add some quality powder from smoke. While you are talking to him get him to toss in a bag of bb's just to make sure you get the right kind. Now add the right container with the 5 in a triangle. Cool whip is a good one to use. Using the right stuff is half the battle. Defiate from this list and it usually ends in frustration if you don't know what you are doing. Once you get a handle on it you can experiment to your hearts content.
    On every question of construction let us carry ourselves back to the time when the Constitution was adopted, recollect the spirit manifested in the debates, and instead of trying what meaning may be squeezed out of the text or invented against it, conform to the probable one in which it was passed.

    Thomas Jefferson, letter to William Johnson, June 12, 1823

  3. #3
    Boolit Buddy
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    a lathe lol seriously, perhaps a can-luring tool might work ... maybe

  4. #4
    Boolit Mold
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    thx @BoolitHead, when you said "... while you are there... ", what did you mean? I am thinking I might not have good lists/ instructions on how/what tools I need and step by step process (I am one of those people with way below-average DIY skills, so need complete, 'cannot-be-misinterpreted' instructions)

  5. #5
    I would suggest you post a good description of your current mold in the classified forum and try to find someone looking to trade a similar lube grooved mold for your grooveless mold.

  6. #6
    Quote Originally Posted by worker View Post
    thx @BoolitHead, when you said "... while you are there... ", what did you mean? I am thinking I might not have good lists/ instructions on how/what tools I need and step by step process (I am one of those people with way below-average DIY skills, so need complete, 'cannot-be-misinterpreted' instructions)
    While you are getting the oven..

    Once you confirm you have these exact things and not others we can work on how to get it done.
    On every question of construction let us carry ourselves back to the time when the Constitution was adopted, recollect the spirit manifested in the debates, and instead of trying what meaning may be squeezed out of the text or invented against it, conform to the probable one in which it was passed.

    Thomas Jefferson, letter to William Johnson, June 12, 1823

  7. #7
    Boolit Buddy
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    Go to Corbin Bullet swaging. He makes cannelure and groove making tools.
    Be well advised that tooling is not cheap.

    CH4D also makes a cannelure tool.

  8. #8
    Super Moderator & Official Cast Boolits Sketch Artist


    RP's Avatar
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    Have you tried the bullets with alox ?
    Reloading to save money I am sure the saving is going to start soon

  9. #9
    Boolit Master
    NoZombies's Avatar
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    If there's someone local to you, they might be able to shorten your learning curve substantially.
    Nozombies.com Practical Zombie Survival

    I collect all things .32. If you have something you don't need, please let me know!

  10. #10
    Boolit Buddy
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    PC is easy or post the mold in S&S and get what you need.

  11. #11
    Boolit Mold
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    Thx for all the suggestion, looked it swaging
    I am going to get another mold instead.

    Cannelure tool seems like a useful tool to have in general.
    Will look into it as well at some point.


    Quote Originally Posted by jaguarxk120 View Post
    Go to Corbin Bullet swaging. He makes cannelure and groove making tools.
    Be well advised that tooling is not cheap.

    CH4D also makes a cannelure tool.

  12. #12
    Boolit Master
    mdi's Avatar
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    I believe the main problem with adding a groove/cannalure to an already cast bullet is holding the bullet while a groove is installed (I thought of a dull tubing cutter). A proper size collet in a lathe may work, but do you have all the stuff for that? I would try two things. Alox a few and see if that works, and if that doesn't work, sell/trade the mold. In other words, if PCing and/or alox doesn't work, get another mold...
    My Anchor is holding fast!

  13. #13
    Boolit Buddy
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    The OP's idea is almost the same and simpler than the conventional practice of rolling threads onto round stock to produce bolts, screws and all-thread. I've had the thought of building a crank-driven three-roller tool with very fine thread adjustment (for repeatable results) to roll boolits to a precise diameter and/or do modifications to the existing grooves. Some good and accurate designs have grooves too shallow for sufficient lube in a long barrel, or in your case, no grooves at all. Rollers with grooves of the desired dimensions and profile would be needed, but it should be a fairly simple operation. One detail that comes to immediately to mind, though, is that massaging that volume of lead around will have the effect of lengthening the boolit, causing cupping of the heel to some degree as well as closing of the crimp groove, possibly a shoulder forming at the base of the ogive from metal being displaced forward. It's certainly doable, it's just a matter of working out the details.

  14. #14
    Boolit Master

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    This could be a tricky operation to get right. Tolomg or pressing into the bullet will displace material that has to go some where else. This could lengthen bend and change dia of the bullet and affect balance. Machining them in removes metal and may also create an out of balance condition along with consistency issues with weight. A light knurl and liquid alox lube may be best.

  15. #15
    Boolit Buddy
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    Country Gent, you're quite right, I think for all practical purposes, a knurl and tumble lube is the simpler, quicker and much more convenient low tech option. A simple roll with a file on a firm flat surface will improve surface texture for adherence and retention of lube volume. For longer barrels, the lube could be modified with the addition of carnauba wax (reduces tackiness of dry LLA) and possibly powdered Teflon or graphite, or moly disulfide for added lubricity.

    Roll-forming threads or lube grooves, material will be displaced and its movement must be directed. The final form (major and minor diameters) would both be controlled by the roller profile and can produce high quality results, but roll-"swaging" with a hand-crank roll former is not a high-volume production process. If the OP is looking to knock out a thou or two of shootable boolits with a minimum investment of effort and time, roll-knurling with a fine or medium cut file will do the job with a similar time cost as conventional sizing-and-lubing of a grooved boolit once one's technique is established.
    Last edited by yeahbub; 10-05-2018 at 12:10 PM.

  16. #16
    Boolit Buddy
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    PC'ing is easy with the right powder coat paint. Some of them do not work as well as others with the shake and bake method. I have found that if a powder does not cover well, tumble them again and it seems to work better the second time. Smoke's signal blue works better than any other color that I have tried.

  17. #17
    Boolit Buddy Murphy's Avatar
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    Have you tried contacting one of our long time members here by the board name of waksupi?

    While I've never had a need for his product, he is the "Trusted loob groove dealer" of Castboolits! Look him up and send him a PM. I'm sure he'll be of the utmost help.

    Murphy
    If I should depart this life while defending those who cannot defend themselves, then I have died the most honorable of deaths. Marc R. Murphy '2006'.

  18. #18
    Boolit Master Grmps's Avatar
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    Get a decent power and a convection oven and you'll be surprised how easy PC is.

    PM me if you have any questions.

  19. #19
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    I sent worker a pc application instruction sheet.. Hopefully he will get it another try .. many many people are having great success with pc bullets now ..
    I carry a Nuke50 because cleaning up the mess is Silly !!

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