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CHOKE ?

Discussion in 'Shooting Related Threads' started by 686, Feb 8, 2011.

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  1. 686

    686 TS Member

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    May 10, 2007
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    I was looking at carlton choke tube chart. i see different guns have different sizes for the same name like ic-m-f . one may list a lm as the same size as another f . if this is true does that mean all mod shoot the same patern or does it mean all .725 "s shoot the same patern? if it goes by mesurement like i think it would be, then when your budy puts in a mod. tube on his browning , you may be puting in a skeet in your breata , or something like that. any idea?
     
  2. Bob Hawkes

    Bob Hawkes Well-Known Member

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    My experience has been that the bore guage from Mr. Bulley on this forum is a valuable tool to determine what you really DO have in the gun for a choke.
     
  3. wolfram

    wolfram Well-Known Member

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    Ultimately what you want to know is the amount of constriction. This is expressed as the bore diameter minus the mimimum diameter of the choke. A choke that has 0.040" of constriction (or more) is usually considered full.

    The best way to determine actual performance is the dreaded pattern testing - time consumining and boring but usefull.
     
  4. WindyOneNW

    WindyOneNW TS Member

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    It also has to do with bore. one gun may have tighter bore and need less constrictive choke. Like a .700 bore and .725 choke could be considered light full when a .710 bore and a .725 choke may be considered light modified. Not the best explanation or even an accurate one but hopefully it illustrates the topic.
     
  5. hmb

    hmb Well-Known Member

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    9,417
    Windy,

    Both of your examples are no choke constriction. The choke has to be smaller than the bore to have choke. HMB
     
  6. WindyOneNW

    WindyOneNW TS Member

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    Yeah i get stuff flip flopped alot. .725 bore .710 choke :)
     
  7. WindyOneNW

    WindyOneNW TS Member

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    Woops. Yeah that ain't good. Ok .725 bore and .700 choke and .725 bore and .710 choke.

    Thanks HMB. Never talk on the phone and type at the same time.
     
  8. Ted K.

    Ted K. Member

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    Feb 8, 2009
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    Location:
    Tiburon, CA
    Here is some info I posted on another thread relating to how Kolar labels their chokes. I don't think their system is substantially different from anyone else's.

    ---------------------

    The numbers on Kolar chokes refer to the amount of constriction (in thousandths of an inch) compared to the nominal bore of the the barrel. Thus a # 20 choke on a .750 bore has a choke diameter of .730.

    Kolar labels their chokes as follows:

    15 - Lt. Modified

    20 - Modified

    25 - Improved Modified

    30 - Light full

    35 - Full

    --------------------

    Ted K.
     
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