6mm Creedmoor Freebore

Discussion in '6mm, 6.5mm, and .25 Cal (Not 6BR)' started by Iowa Fox, Jan 20, 2020.

  1. Iowa Fox

    Iowa Fox Silver $$ Contributor

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    The folks doing my 6mm Creedmoor barrel have two reamers both 275 neck and a 123 or 190 on freebore. I want to ask the experts here for their opinion. The bullets I intend to use would maybe be

    Hornady 108 eld
    107 Smk
    105 Hornady match

    and maybe
    95 Smk or Berger

    Kind of the same bunch or bullets that Ranger188 replied to in spudguns post

    Thanks guys
     
  2. 22DASHER

    22DASHER Gold $$ Contributor

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    The 123 will work the best.
     
  3. jamesh

    jamesh

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    I would go with the .190" freebore. The .123" is for lighter weight bullets.
     
  4. MTlager

    MTlager Silver $$ Contributor

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    I use .145 for 115 Bergers . 105 be jumping along ways with.190
     
    22DASHER likes this.
  5. RussellJ

    RussellJ Gold $$ Contributor

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    I have a 6mm Creedmoor with a .109" Freebore and it is "WAY TOO SHORT". The Hornady 81393 Factory 87grn V-Max Varmint Express Ammo is too long for my chamber. I'm currently shooting the Sierra 1515 80grn Varminter Bullets with good results.
    upload_2020-1-20_15-19-38.png
     
  6. SGK

    SGK Silver $$ Contributor

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    This is the print of the reamer Dana English used to do my 6mm Creedmoor build. 150 freebore for use with 105 Berger Hybrid Target in particular. I bought the reamer as I think it is something worth owning for future barrels. Didn't cost much.
     

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  7. 22DASHER

    22DASHER Gold $$ Contributor

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    Best option is to load up a dummy to where you want the bullet seated in the case. Send it to JGS and have a reamer made. OR, send it to your smith for proper throating.
     
  8. gman47564

    gman47564

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    its hard to shoot the 108 eldm and a 105 berger… the eldm is quiet a bit longer than the rest of them bullets... if your dead set on the 108 eldm go with the 190... I shoot mainly the 105 berger hybrids in mine and the free bore is 150 and about perfect...
     
  9. Iowa Fox

    Iowa Fox Silver $$ Contributor

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    7887mm08 and 22DASHER like this.
  10. Ranger188

    Ranger188 Silver $$ Contributor

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    I know it's hard to pick a bullet so early on but, each bullet has a different
    design whether it's a secant or tangent.
    You could have a longer bullet but it might have a longer jump and a shorter bullet might have a
    shorter jump. Try to decide what bullet you have more confidence in or will suit your needs.
    All of the mentioned ones are pretty easy to get. I won't tell you whats the best freebore
    because if you pick a certain bullet and it doesn't work, then you blame me.
    Theirs quite a difference between a 95g and a 107g or 110g
    The 6 Creed will burn the barrel out faster than some other calibers, no getting around that
    unless you run it at 2800 fps, but then what's the point of getting it.
    Do your home work and see what is working for others with the same bullet you want to
    run.
    The 275 neck is a no turn neck, so you wouldn't have to turn necks if you don't want to.
     
  11. CW260

    CW260

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    .276 neck, 160FB, 115 DTAC’S..2 good nodes 2940fps and 3025. Lapua brass SRP and CCI 450’s. H4350. 1:7 twist
     
    Last edited: Feb 14, 2020

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