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MX-2000 standard bore size?

Discussion in 'Uncategorized Threads' started by Avaldes, Sep 28, 2007.

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  1. Avaldes

    Avaldes Well-Known Member

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    The bore size is stamped on the barrel. Should be a number between 18.4 and 18.7mm. The number of stars stamped on the barrel corresponds to the choke. 4 stars = extra full (~.040 to .035), 3 stars = full (~.030 to .035), 2 stars = Mod (~.020) and so on.

    My gun has .034 choke on the single and is stamped with 3 stars. The O/U has .020/.030 and is stamped with 2 and 3 stars respectively.

    There is also a proof mark with two letters in a box. They are a code that tells what year the barrel was proofed. Somewhere is a website that decodes this, from memory CA = 2006, BZ = 2005, BY =2004 and so on.

    -Aaron
     
  2. W.P.T.

    W.P.T. TS Member

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    The barrels on mine mic out at .734/.031 restriction on the single barrel and .734/.030 restriction on the top barrel and .734/.022 restriction on the bottom barrel of the over/under barrels ... These barrels are untouched and just the way they come from Perazzi ... WPT ... (YAC) ...
     
  3. miketmx

    miketmx Well-Known Member

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    On my MX3 made in 1982 the fixed choke designation is: 1 star is Extra Full at .042 and the other barrel is 3 stars for Improved Modified at .028.
     
  4. Avaldes

    Avaldes Well-Known Member

    Joined:
    Jan 29, 1998
    Messages:
    1,876
    Location:
    Central Coast of California
    The bore size is stamped on the barrel. Should be a number between 18.4 and 18.7mm. The number of stars stamped on the barrel corresponds to the choke. 4 stars = extra full (~.040 to .035), 3 stars = full (~.030 to .035), 2 stars = Mod (~.020) and so on.

    My gun has .034 choke on the single and is stamped with 3 stars. The O/U has .020/.030 and is stamped with 2 and 3 stars respectively.

    There is also a proof mark with two letters in a box. They are a code that tells what year the barrel was proofed. Somewhere is a website that decodes this, from memory CA = 2006, BZ = 2005, BY =2004 and so on.

    -Aaron
     
  5. W.P.T.

    W.P.T. TS Member

    Joined:
    Jan 29, 1998
    Messages:
    8,371
    The barrels on mine mic out at .734/.031 restriction on the single barrel and .734/.030 restriction on the top barrel and .734/.022 restriction on the bottom barrel of the over/under barrels ... These barrels are untouched and just the way they come from Perazzi ... WPT ... (YAC) ...
     
  6. miketmx

    miketmx Well-Known Member

    Joined:
    Jan 29, 1998
    Messages:
    2,969
    On my MX3 made in 1982 the fixed choke designation is: 1 star is Extra Full at .042 and the other barrel is 3 stars for Improved Modified at .028.
     
  7. Avaldes

    Avaldes Well-Known Member

    Joined:
    Jan 29, 1998
    Messages:
    1,876
    Location:
    Central Coast of California
    Steve W has it correct, I had it backward before. I looked at my barrels at lunch and they agree with his post.

    The little circles with a dot = "stars" on my barrel.
     
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