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Beretta Bore Diameter

Discussion in 'Shooting Related Threads' started by Steve W, Nov 26, 2012.

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  1. Steve W

    Steve W Well-Known Member

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    Part of the Italian proof making is bore size. They are stamped on the left side of the barrel in mm.

    approx. 18.4 mm =0.724", 18.7 mm =0.736", 18.8 mm (max. allowed)=0.740"
     
  2. 687_SP_II

    687_SP_II TS Member

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    My optima barrel is marked 18.6 = .732.
     
  3. shot410ga

    shot410ga Well-Known Member

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    303 Barrel is .725
     
  4. claybrdr

    claybrdr Well-Known Member

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    My 390 barrel is .725 and my DT-10L barrel is .734/.735
     
  5. AveragEd

    AveragEd Well-Known Member

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    All six tubes in our Optima-barreled combos mic between .730" and .732".

    Ed
     
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