Glock 17

Discussion in 'General Handgun Discussion' started by biggun, Nov 17, 2012.

  1. biggun

    biggun New Member

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    My glock is shooting about 4'' to high do I need to get a taller front sight if so what size shoult I get
     
  2. SSGN_Doc

    SSGN_Doc Well-Known Member

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    What kind of sights? What ammo? What distance? What sight picture are you using (6 o'clock hold or dead center)?
     

  3. biggun

    biggun New Member

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    I am useing xtp bullets at about 25 yards and I have ajustable sights on the back I have set them low as they will go
     
  4. SSGN_Doc

    SSGN_Doc Well-Known Member

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    Factory loads?

    It sounds like you may indeed need a taller sight if that is the case. Also most Glocks need a 6 o'clock hold on the black of a 25 yd bullseye to hit center at 25 yds.
     
  5. biggun

    biggun New Member

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    How much higher would go on the front sight , I am pointing at the center
     
  6. KG7IL

    KG7IL Well-Known Member

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    I stole a couple of numbers from http://www.gunrightsmedia.com/showthread.php?408305-Glock-19-17-34-Sight-Radius-effects

    If your sight radius is 6.5" and you are shooting 4" high at 25 yards, then.

    h= required increase in heigth.

    25 yards is 12 inches/foot & 75 feet or 900 inches

    Now we are happy 'cause everything is inches, and lord knows we don't live in a foreign country.

    So from the diagram below we get h= (6.5" * 4")/900
    .028888 isn't much, call it 3 hundreths or less than 1/32" increase in heigth.
     

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  7. HOSSFLY

    HOSSFLY New Member

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    Try a 6 o'clock hold-
     
  8. KG7IL

    KG7IL Well-Known Member

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    Works fine for standar bull targets, not so good for shooting shotshell husk or charcoal briquettes. or a turkey head.

    I'm all for the POA/POI at 25, then applying kentucky windage from that point.

    But, after the math says t's less than 1/32 of an inch, I would "hold low" also, I am not so sure that he would want to go through replacing, testing, filling, testing, filing, testing, and finishg, for 1/32"
     
  9. Dragonheart

    Dragonheart New Member

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    I would suggest trying different ammo to see if it will get you closer to your point of aim. About the best group I have ever gotten out of a G-17 at 25 yards is 2-1/2" out of a machine rest, so you might not be too far off. If you are going to fool with the sights I would suggest picking up an adjustable set of Glock sights off EBay. You can usually find some new takeoffs for around $20. Changing out the fixed sights with adjustable will most definitely solve your problem.
     
  10. danf_fl

    danf_fl Retired Supporter

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    Lighter bullets will impact lower than heavier ones.
     
  11. TimKS

    TimKS Active Member Lifetime Supporter

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    4" high at 25 yds. ain't enough to quibble about.
     
  12. KG7IL

    KG7IL Well-Known Member

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    It is a bit high for the 'cigarette' challenge on another thread. Again, I will say it's a bit high for shooting shotgun hulls or charcoal briquettes.

    The question would be compensate or fix.

    At least it's elevation and not windage. :)
     
  13. HOSSFLY

    HOSSFLY New Member

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    Uhhh- Yeah, needs to be addressed :rolleyes:
     
  14. Dragonheart

    Dragonheart New Member

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    Any gun that is inaccurate whether it is due to the ammo or the gun teaches you nothing! An accurate firearm will make you a better shot, because when the shot is off there is only one reason.