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9mm 147gr verses (3) water jugs, with drilled out hollow point silicone filled

Discussion in 'Handguns: General Discussion' started by saiga308, Nov 28, 2019.

  1. saiga308

    saiga308 Member

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    trucker long hauling everywhere LOL

    well that was a lame result:uhoh: i thought it would open up a lot more and stop in the 3rd jug? subsonic 9mm rounds are less expansion then i thought:thumbdown:
     
  2. saiga308

    saiga308 Member

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    trucker long hauling everywhere LOL
    as you see this 147gr test stop in the 3rd jug
     
  3. Smokepole14

    Smokepole14 Member

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    The 147 gr hst is designed to expand at subsonic levels. Perhaps the bullet you shot that you drilled out isn’t suppose to expand at all. Ammo manufacturers have a special mixture they use in bullet making that helps them to expand/not expand so they control what they want the projectile to do.
     
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  4. saiga308

    saiga308 Member

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    trucker long hauling everywhere LOL
    i bet the lead is softer then the basic plated one i used and a real hollow point they have cuts in the brass to help it fold back and the brass acts as a wall to control the expansion
     
  5. tbob38

    tbob38 Member

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    Was that hard ball that you drilled out?
     
  6. saiga308

    saiga308 Member

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    trucker long hauling everywhere LOL
    yeap went at least a quarter inch into the bullet also good size hole, i have shot them into wet phone books and they broke up in pieces? must be harder lead content in them
     
  7. Smokepole14

    Smokepole14 Member

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    Yes lead in hollow points bullets is softer to a degree to aid in expansion. Also like you mentioned they have serrations to help the jacket “peel back”. I’m not sure what all is mixed with lead because pure lead is way to soft. I think tin and antimony is added to help control expansion so it doesn’t over expand and compromise penetration while still giving good expansion.
     
  8. reddog81

    reddog81 Member

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    Lead in plated bullets I’d usually pretty soft.
    How did you determine there’s was no expansion when the bullet wasn’t recovered?

    With jacketed hollow point bullets I think the jacket composition, size of HP, the perforations in the jacket all determine when and how much the bullet expands. Drilling into a plated bullet is a neat experiment, but doesn’t replicate factory ammo.
     
  9. saiga308

    saiga308 Member

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    The entrance and exit of the 3rd jug holes were 9mm size when I look at in closly
     
  10. armoredman

    armoredman Member

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    Cast lead is generally a lot harder than the soft lead in a jacketed bullet. Even going to Brinell 10 I was unable to get any expansion in 124 gr 9mm Lee cast bullets using the Forster Hollow Pointer tool. Of course, I might have been doing it wrong, too.
     
  11. LocoGringo

    LocoGringo Member

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    Interesting experiment, but I wonder what the bullet actually weighed since you drilled out part of the heavy (copper and lead) material and replaced it with a lighter material (silicone). I'm sure it didn't weigh the original 147 grains.
     
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