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Whats the difference?

Discussion in 'Caliber Corner' started by hurley842002, Nov 26, 2009.

  1. hurley842002

    hurley842002

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    So I just got my Double Tap .357sig 125gr Bonded Defense (Gold Dots) ammo in the mail today, and the Gold Dots in the Double Tap is quite a bit different then the Gold Dots in my Speer ammo. The Double Taps have a deeper Cavity resembling the .40 and .45 Gold Dots I have, and the Speer's have a more shallow Cavity resembling 9mm Gold Dots i've had in the past. Anyone know what the difference could be? Here is a pic, the Speer is on the left, with the Double Tap on the right

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  2. RMTactical

    RMTactical www.AR15pro.net CLM

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    The picture is pretty blurry, do you have a macro setting on your camera? I take it the DT is the one on the right (because of the brass casing, or lack of nickel plating I should say...)?
     

  3. hurley842002

    hurley842002

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    Its a crappy camera phone pic. I thought it would be decent enough to tell the difference but it is a bit blurry, let me see if photobucket can make it any better.
     
  4. carbofan21

    carbofan21

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    looks like doubletap is using the 124 grain 9mm speer gold dot bullet in their 357 sig load.
     
  5. hurley842002

    hurley842002

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    If thats the case, then thats not ok. Last time I checked, .357 sig bullets were made to withstand .357 sig velocities and such. Here is another pic, still blurry but a different angle

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  6. nndavec

    nndavec

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    +1, looking at the Speer GD 124+P and the 125 357 Sig Gold Dot that I have the double tap appears to be using the 9mm 124 GD.



     
  7. hurley842002

    hurley842002

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    Anybody forsee any problems with this? I'm going to do a half a#$ed Balistic test (milk jugs with soaked paper shreds) on the double taps tomorrow, so I will see if they hold up. I've got nothing but good things to say about Double Tap ammo, I really like their 230gr .45's, but i'm not sure if I like the fact that the 124 grain bullets are being used in the .357sig ammo.
     
  8. RMTactical

    RMTactical www.AR15pro.net CLM

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    I doubt that it will be much of an issue.
     
  9. carbofan21

    carbofan21

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    bingo :whistling:
     
  10. carbofan21

    carbofan21

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    you'll likely see an increase in expansion and possibly some fragmentation, which could cause shallow penetration. speer developed the 125 grain load for 357 sig velocities for this very reason.
     
  11. hurley842002

    hurley842002

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    hmmm, should be interesting. I'll post a pic of the bullet tomorrow when I get back from shooting. Anybody else using this ammo and have the same 124 grain 9mm Gold Dots? Or did I just get a half arsed batch.
     
  12. cat118

    cat118

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    But Speer only loads their 125-gr .357 SIG to 1350 FPS vs the advertised full strength 1450 FPS by DT. Does the 124-gr 9mm +P+ loading reach 1450 FPS? Perhaps that's the thought behind the DT usage?
     
  13. fredj338

    fredj338

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    I understand Speer makes two bullets for the 357sig, one for increased penetration one to limit penetration. I don't think you can even get the 124gr 9mm to run 100% in the 357sig. The sahoe is not the same. Pull a bullet & weigh it. The 375sig shoul dbe 125gr, the 9mm 124gr.
     
  14. hurley842002

    hurley842002

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    Hopefully this is the case. I e-mailed Mike from Double Tap, and asked what he is using in the Sig loadings. Will share his response when I get it.
     
  15. SIGShooter

    SIGShooter Hucklebucks

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    The limited penetration 357 SIG load from Speer looks like the load from DT.

    Of course, you need to pull the bullet and weigh it. That will tell you without any doubt what bullet they are using. If it's 124...it's 9MM, if it's 125...it's .357 SIG. Then you can go from there. Whether it is limited penetration or and old design.

    If they are using anything else but the 357 SIG bullet...Send that crap back.

    I have a friend who reloaded 9MM bullets for his 357 SIG. He had nothing but problems with them. They are designed differently because of the bottle neck case.
     
  16. SIGShooter

    SIGShooter Hucklebucks

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  17. hurley842002

    hurley842002

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    This would make sense to me, because I've got .40 and .45 Gold Dots (the .45's from Double Tap), that are the same design as the bullet in question. I've also had Buffalo Bore 9mm+P's that were the design from Speer. Just by looking at them, it appears the Speer would penetrate further simply due to the shallow cavity. The deeper cavity of the DT Speer, seems like it would definitely expand more, therefore not penetrating quite as much. I'm looking forward to see how they perform, and for Mike's answer. Again, I really like DT ammo so I hope its the limited penetration .357sig.
     
  18. hurley842002

    hurley842002

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  19. SIGShooter

    SIGShooter Hucklebucks

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    Not trying to rain on your parade...

    Why would you be happy getting a Limited Penetration round as opposed to what was actually advertised?

    The limited penetration rounds are just that...Limited penetration. They were originally designed for the Air Marshall's program for use in planes.

    With those style of rounds being pushed as fast as DT does...You will lack in penetration and even see fragmentation which will in turn limit the penetration more.

    Just my opinion.
     
  20. wingspar

    wingspar

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    Well, can’t add any experience, as I’ve never used any of this ammo yet, but it was an excuse to get the camera out. May not be of any help in this thread, but I felt like doing it. These are 9mm Gold Dot 124 grain. Click on photos to see better resolution.

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