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Perazzi choke tubes

Discussion in 'Uncategorized Threads' started by VNVET, Oct 26, 2008.

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  1. VNVET

    VNVET Member

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    How do you determine the actual constriction on a Perazzi choke? I know that #10 is Xfull but Perazzi must have some sort of system or formula in mind with their numbering that would be the equivilant of a decimal number, like for example, .034. Can anyone help me out here?

    Jim
     
  2. ramorton

    ramorton TS Supporters TS Supporters

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    You will have to use a bore mic since barrel i.d's are different. Hope this helps, Roy
     
  3. Steve W

    Steve W Well-Known Member

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    The numbers on the choke is in 1/10th of mm.

    10=.040", 8=.036", 6=.024" etc... 0=cylinder.
     
  4. miketmx

    miketmx Well-Known Member

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    Multiply the choke number by 4 for approximate constriction. #8 choke should be .032 but in my TMX it is .036 because my barrel is actually .728 instead of the .724 or 18.4 mm that is stamped on it.
     
  5. VNVET

    VNVET Member

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    Thanks to all who replied...... that is the info I needed.
     
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