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International trap with ported choke tubes?

Discussion in 'Shooting Related Threads' started by turbonick, May 26, 2010.

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  1. turbonick

    turbonick Member

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    I know very little about the rules of International Trap. I've heard that there are a let of rules about ports though. What are the rules about ported choke tubes? Are those allowed? I don't really think you need ports when you're shooting 7/8th oz loads but I am thinking about it. Is that legal?
     
  2. PerazziBigBore

    PerazziBigBore TS Member

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  3. BunkerGuy

    BunkerGuy TS Member

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    The complete ISSF rules are here:

    http://www.issf-sports.org/theissf/rules/english_rulebook.ashx#/1/

    The(choke tube)porting rule is:

    9.4.2.7

    ...Ported interchangeable chokes are permitted, provided their porting plus any barrel porting does not exceed 20 cm [13/16"] as measured from the muzzle end of the interchangeable fitted choke.

    - - Bill
     
  4. XTerminator

    XTerminator Member

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    20cm = 7 7/8" from the muzzle

    Steve
     
  5. turbonick

    turbonick Member

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    Thanks for the information!
     
  6. phirel

    phirel TS Member

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    20 cm = nearly 8 inches, 20 mm = 0.7874 inches, 13/16 of an inch =0.81 inches. 20 mm is between 3/4 and 13/16 of an inch.

    Pat Ireland
     
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