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brass diameter

Discussion in 'Shooting Related Threads' started by thomaslea1, Feb 20, 2010.

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  1. thomaslea1

    thomaslea1 Member

    Joined:
    Feb 16, 2008
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    186
    Looking for the brass diameter for a 12 gauge. I need to set the resizing collett of a MEC and can't find a measurement. I prefer not to use '... small enough for the gun you have with the tightest chamber.' I'm assuming it's somewhere around 0.800".

    Thanks

    Tom
     
  2. Neil Winston

    Neil Winston Well-Known Member

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    Jan 29, 1998
    Messages:
    7,848
    0.8 is the chamber at the brass end. Just bit smaller might be nice, it seems to me.

    Neil
     
  3. thomaslea1

    thomaslea1 Member

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    Thank you.......
     
  4. halfmile

    halfmile Well-Known Member

    Joined:
    Jan 29, 1998
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    15,648
    Location:
    Green Bay Wisconsin
    .806, .809 gave me sticky shells in my 90T. You don't want to work the collet any harder than you have to.

    I don't mind the price but I hate to change them. So work it just enough plus a thou or 2.

    HM
     
  5. Unknown1

    Unknown1 Well-Known Member

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    Nov 5, 2009
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    3,402
    MEC recommends .806"-.807"

    MK
     
  6. locdoc

    locdoc Member

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    Jan 29, 1998
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    874
    Location:
    Antrim, NH
    A wealth of info at the above site. As small as .800" at the crimp to .815 at the base for 12 ga. Depends on the chamber length.

    Doug Whiton, P/W dealer/dist
     
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