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1oz what is it based on

Discussion in 'Shooting Related Threads' started by ricks1, Dec 6, 2009.

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  1. ricks1

    ricks1 TS Member

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    what is 1 oz of shot based on. 1 oz is 437.5 gr one oz on any dipper or bushing will not weigh that much. I have tried down to 9s it must be size 12
     
  2. 221

    221 Banned User Banned TS Supporters

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    1oz is 1oz.....The more antimony, IE... the harder the shot, the lighter it is.
    Pure lead is heavier than hard lead.
     
  3. hmb

    hmb Well-Known Member

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    It is based on what the scale reads, not what the bushing throws. The bushing makers are playing it safe, they do not want to give you an overload. HMB
     
  4. short shucker

    short shucker TS Member

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    I have 3 shot bushings that are spot on for chilled Lawrence shot. My 7/8 oz 8's, 1 oz 8's, and 1 1/8 oz 7 1/2's. These are all Hornady bushings. My 7/8 oz 7 1/2's bushing throws right at 24 grams with Lawrence magnum 7 1/2's.

    I've never had any Mec bars that were even close. I always used a wheel cylinder hone to get get the size i needed for an accurate drop.

    ss
     
  5. phirel

    phirel TS Member

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    Shot bushings can be enlarged quickly with a file to get the desired weight. But the next lot of shot can give a different weight through the bushing. Not all shot comes out the same. The only time I am really concerned about the exact number of shot in the shell is when I am testing patterns. Then, I wounder why I take so much time to get so little information.

    Pat Ireland
     
  6. Post  2

    Post 2 TS Member

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    My shot bushings are marked for the size of shot. 8 1/2s will wiegh more than sevens ect. useing the same bushing for both. Post-2
     
  7. stokinpls

    stokinpls Well-Known Member

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    Uh, 437 grains of "shot" delivered by whatever means necessary.
     
  8. hoggy

    hoggy TS Member

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    I honed my mec 1 oz bushing out to weigh 1 oz. Since than it's never measured more than 6 or 7 pellets either way. A 14 pellet spead is not something I'm going to worry about. Originally the bushing droped around 15/16 oz +-.
     
  9. OldGoat

    OldGoat Well-Known Member

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    I'm currently whittling away on my MEC 1 oz charge bar with a rat tail file, trying to get ~1 oz shot (+) consistently. Kind of a pain...we'll see. Regards, Ed
     
  10. halfmile

    halfmile Well-Known Member

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    It's based on a particular setting of my dial bar that matches the shot I am using.

    HM
     
  11. GW22

    GW22 Active Member

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    It's the weight of 1/16 of a pound located right on the North or South pole. As you move further away from the earth's rotational axis it gets lighter because it's swinging around at higher speed.

    -Gary
     
  12. GW22

    GW22 Active Member

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    That's also why shot speed is higher when you're shooting toward the equator.

    -Gary
     
  13. Quack Shot

    Quack Shot Active Member

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    1 oz by weight, not by volume. Most fixed volume shot bushings throw light if you are using hard shot.
     
  14. GW22

    GW22 Active Member

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    It's also interesting that 1 ounce is the heaviest load you can shoot before the mass begins to cause the shot pattern begins to rotate (counterclockwise in the Northern hemisphere and clockwise in the Southern hemisphere). That's because any number smaller then 1, when squared, yields a lesser number.

    -Gary
     
  15. Neil Winston

    Neil Winston Well-Known Member

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    How about minus 1 1/8 ounce, Gary? A weight like that is easily achieved by simply turning a bushing inside out and it gets bigger when fired because of the square rule. The only drawback is that you have to keep an eye on your shell boxes on the line lest they drift away on a breeze.

    But you are right about shot speed being higher when shooting toward the equator, that's why trap fields face north; it's an attempt to limit pellet velocity without making people read the rulebook.

    Neil
     
  16. GW22

    GW22 Active Member

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    I wish you guys would be serious. I'm just trying to learn you some stuff.

    -Gary
     
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