Crown

Discussion in 'Advanced Gunsmithing & Engineering' started by lancexxx, Aug 24, 2019.

  1. lancexxx

    lancexxx Buchanan Accuracy Gold $$ Contributor

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    Leave it sharp, or break the edge
     
  2. ridgeway

    ridgeway Silver $$ Contributor

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    Sharp and use a sharp cutter. picsay-1477013400020.jpg
     
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  3. biggun2869

    biggun2869 Silver $$ Contributor

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    you guys are waaaaay above me I'm really just seeing if my membership has been upgraded.
     
  4. biggun2869

    biggun2869 Silver $$ Contributor

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    and it has! Knew it was about this time last year. Gary
     
  5. lancexxx

    lancexxx Buchanan Accuracy Gold $$ Contributor

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    I leave it sharp, just wondering what other folks do with it
     
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  6. Dusty Stevens

    Dusty Stevens COVFEFE- Thread Derail Crew Gold $$ Contributor

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    Sharp on a target rifle. Youll have a drawer full of tools before you find the right one. When you do itll resemble this one
    BD8EF41A-BE07-4515-8696-FBC56578D7FB.jpeg
     
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  7. msalm

    msalm

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    I use a sharp high rake hss bit and add a small 45 degree chamfer on all crowns. As long as it’s clean and concentric is the most critical IMO.
     
  8. Preacher

    Preacher Gold $$ Contributor

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    Sharp and slow works for me, nothing more...
     
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  9. boltfluter

    boltfluter Gold $$ Contributor

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    Micro 100 solid carbide mini boring bar for breaking the edge. Razor sharp and does a great job. Many of the top smiths use this bar with great results. Carry on. :D:D

    Paul
     
  10. DaveTooley

    DaveTooley Silver $$ Contributor

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    It doesn't matter. I've done thousands with a chamfer. All indicated in +/- .00025"
    The universal test. Run a Q-tip in and out. Does it pick up any fibers?
     
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  11. GenePoole

    GenePoole

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    Yup, that's the tool.

    [​IMG]
     
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  12. PatMiles

    PatMiles Gold $$ Contributor

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    So what's the purpose of dumping these here?
     
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  13. Danny1788

    Danny1788

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    Positive rake inserts for AL leave a baby smooth crown for me. I’ve done flat & 11 degree, can’t tell any difference. I’ve broke the edge and left it sharp. I’m probably not a good enough shooter to know the difference. Just test it yourself and prove to yourself what is best.
     
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  14. bibsmachine

    bibsmachine Silver $$ Contributor

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    I am with Dave Tooley on this one I always use a small chamfer and it helps to keep from scraping the coating on your cleaning rods. Sharp crown works ok but It gets damaged faster I think.
     
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