Glock 40 10mm issues

Discussion in 'General Glocking' started by Bama rolls, Jul 10, 2017.

  1. Bama rolls

    Bama rolls

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    1. Bama rolls
      I almost don't want to post as I have researched this issue all over to find a solution but just never found anything to satisfy me. I have a 10mm model
      40 that I can't point of impact to be where I am aiming. I've tried different types of ammo and different grains of bullets that all hits target mostly left, some lower than others but all left. Some background about myself 50 yr old reloaded very seasoned at shooting/hunting outdoors activity. Owner of several long guns and pistols that hit where I aim. I own another Glock in 40 caliber that shoots like a dream. No issues regarding point of impact. I've never shot reloaded ammo in glock model 40. I have even put it On a rest and it still hits left. I hate pistols that a person has to move sights all the way right to move point of impact to center. This gun groups good but is always 6 inches off at 17 yards. I've put a laser on it and practiced trigger pull so flinch is not an issue. I'm at a loss and believe it's in the gun somewhere. Anyone got any other ideas?
     
  2. MinervaDoe

    MinervaDoe

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    Drift the rear sight.
     
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  3. Bama rolls

    Bama rolls

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    I could but like I stated I don't like guns that have to have the sights adjusted all the way right to hit the mark in the center. I don't mind moving it a little for small corrections but this would need to be moved as far right as it would go
     
  4. Danny Reid

    Danny Reid

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    Bama, have you had anyone else shoot it to see if it happens with them, too? Just trying to eliminate as many factors as possible. Are the groups you are getting 6" to the left at 17yds tight groups?
     
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  5. 4949shooter

    4949shooter

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    +1 at having someone else shoot it, preferably an experienced Glock shooter.
     
  6. Bama rolls

    Bama rolls

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    Yes the gun groups very well. I have not let anyone else shoot it but I do have that planned soon
     
  7. MinervaDoe

    MinervaDoe

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  8. Bama rolls

    Bama rolls

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    i
    the 10mm frame is big to begin with which makes it almost impossible to add something like an aftermarket grip to it. Since it's a full size no need to put an extension on it. My hands are medium size so I don't have any extra room to change grip size. I may have to change my grip pressure. I've already tried more and less trigger finger and it made no difference.
     
  9. TGT

    TGT

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    I'd be surprised if somebody can tell you how to do something inside the pistol that causes it to shoot the other direction. If it drifting the rear sight is not acceptable to you, then perhaps you're at an impasse and the only solution is to replace the gun. I'd bet you that drifting the back sight is all Glock would offer to do for you.

    I'm going to check this thread periodically to see if somebody has a simple techinical cure. I'd like to hear it myself. Good Luck!
     
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  10. Bama rolls

    Bama rolls

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    thanks TGT
     
  11. Nick B

    Nick B

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    Maybe this will help . A guy on the Beretta forum a few weeks back was having the same problem with his new Wilson Combat Beretta . It was shooting way left . He swapped in a barrel from his other Beretta 92 and the gun shot right to point of aim . So the factory put a new barrel in it and it now shoots fine .
    Do you know anyone else that has a G40 that you can swap barrels to see what happens ? Worth a try .
     
    Last edited: Jul 10, 2017
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  12. Bruce M

    Bruce M

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    I would probably let someone else shoot it before I spent any money on it. At least then you may have a better whether or not there is an issue with the gun.
     
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  13. Bama rolls

    Bama rolls

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    This week end my brother and I plan to get together and I'll let him shoot it. He has the exact same gun I have so maybe we can figure it out. Thanks
     
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  14. Bama rolls

    Bama rolls

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    I installed one of the extra backstraps that came with it. That should tell me if it's a grip issue. That will make me change how I hold it. I don't like the extra grip but hey if you don't change something you should not expect a different result
     
  15. 4949shooter

    4949shooter

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    Could be a grip issue I agree. I have problems switching back and forth between Glocks and 1911's sometimes. The different grip changes my POI.
     
  16. Bruce M

    Bruce M

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    If he brings his too, it would seem you could each shoot each gun which could be close to a perfect test.
     
  17. Bama rolls

    Bama rolls

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    It will be this weekend so I'll let y'all know afterward. Thanks everybody
     
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  18. Danny Reid

    Danny Reid

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    Honestly, I am baffled. All I can figure is, assuming you are right handed, maybe you are gripping too tight with your support hand and pulling shots to the left. But these situations are damned difficult to diagnose. Glocks aren't known for stellar accuracy, but I've never heard of one consistently throwing left of center shots. I know it's got to be frustrating. Keep us posted!
     
  19. WeeWilly

    WeeWilly

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    If you decide to try drifting the rear sight, try about .080" to the right for the rear. That should pull you POI 6" to the right at 17 yds. Also make sure your front sight is secure and straight.

    Good luck.
     
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  20. Bama rolls

    Bama rolls

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    I will but it may be this weekend. Thanks for you comments