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.700 dia. wad vs a .740 bore

Discussion in 'Shooting Related Threads' started by leadshot, Feb 26, 2013.

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  1. leadshot

    leadshot Member

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    Aug 9, 2010
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    can someone explaian to me how a .700 dia. wad seals in a .740 bore ...is it just the petals that seal or does it not seal till gets to choke.tried to colaspe one in vise as if fired but dia. does not change...
     
  2. Scott Johnson

    Scott Johnson Well-Known Member

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    The skirt on the wad expands to fill the gap under pressure and heat from the powder charge. Scott
     
  3. skeet_man

    skeet_man Well-Known Member

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    The base of the wad expands as it is forced out by the gases created from combustion of the powder. Kinda like how a Minie ball expands to meet the rifling in a Civil War musket.
     
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