In reply to myself, in the debate "9mm or .40 SW for CCW"

In reply to myself, in the debate "9mm or .40 SW for CCW"

This is a discussion on In reply to myself, in the debate "9mm or .40 SW for CCW" within the Defensive Ammunition & Ballistics forums, part of the Defensive Carry Discussions category; I have compiled the following info, based on manufacturer's specifications. Rounds were from 4" test barrels: 9mm vs .40 S&W Comparisons by Manufacturer’s Data (Through ...

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  1. #1
    Ex Member Array MP9NewMexico's Avatar
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    In reply to myself, in the debate "9mm or .40 SW for CCW"

    I have compiled the following info, based on manufacturer's specifications. Rounds were from 4" test barrels:


    9mm vs .40 S&W Comparisons by Manufacturer’s Data (Through Heavy Cloth, from 4" test barrels)

    Gold Dot 147gr 16.93” pen, 0.54” exp
    Gold Dot 124gr +P 15.88” pen, 0.56” exp
    Gold Dot 165gr 17.55” pen, 0.583” exp
    Gold Dot 180gr 14.10” pen, 0.662” exp

    HST 147gr 12.0” pen, 0.66” exp
    HST 124gr+P 12.0” pen, 0.64” exp
    HST 165gr 13.25” pen, 0.67” exp
    HST 180gr 13.5” pen, 0.70” exp

    T-series 147gr 13.9” pen, 0.65” exp
    T-Series 124gr+P 13.2” pen, 0.775” exp
    T-Series 165gr 14.2” pen, 0.828” exp
    T-series 180gr 13.4” pen, 0.64” exp

    Ranger Bonded 124gr+p 18.2” pen, 0.56” exp
    Ranger Bonded 147gr 15.8” pen, 0.58” exp
    Ranger Bonded 165gr 14.0” pen, 0.69” exp
    Ranger Bonder 180gr 13.9” pen, 0.69” exp

    So, looks like the .40 edges out the 9mm for exp and pen in Gold Dot, HST, and T-series. 9mm out-penetrated 40 in Ranger Bonded/PDX, but .40 out-expanded the 9mm. You may think "gee, what's a .06" difference?", well consider the fact that .06" = ~10% more expansion. You're already at a disadvantage in a CCW situation defending against an agressor, so I would think every extra bit of energy, exp, and pen would matter.

    However, that being the case, I compared my Shield 9mm and a buddy's PT740 side by side today at the range. I was much more accurate with the Shield in double and triple tap drills. I found the PT740 recoil to be quite heavy, with slower and a little less accurate follow up shots.

    So, in essence, I think it really does boil down to shoot what you are most accurate with --- to a point. I read in a medical text that bones can withstand 200 ft/lb of force before breaking. So if your gun/ammo combo can get 200+ ft/lb (enough force to break and penetrate the skull or ribs), and you're accurate with it, then shoot it, by all means.

    So yeah, shoulda just saved myself the headache


  2. #2
    Member Array CDRGlock's Avatar
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    Shoot whatever you feel comfortable with. I carry anything from 380 to 9mm to 40 to 38+P to 357 Magnum and 45 ACP.

    I'm not a big fan of Taurus Semiautos. Triggers aren't good at all. I'm ok with their revolvers, though.
    NRA, Lifetime Member

  3. #3
    Member Array WillyNilly's Avatar
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    I feel that the 40 hits harder than the 9mm. I have both and they're loaded with PDX1s.

    From Ballistics 101:

    9mm - PDX1 124+P
    MV = 1180
    ME = 396 ft/lbs

    40sw - PDX1 165
    MV = 1140
    ME = 476 ft/lbs

  4. #4
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    If you shoot until the threat ceases, none of this extra curricular stuff matters much.

    Whether its 5 shots of 9mm or 4 shots of .40, the guy getting shot isnt going to care.

    Go with what you can shoot well. Shoot the biggest caliber you can comfortably shoot.
    Comfortably shoot, means, shooting as fast as you can and hitting the target.
    I would rather stand against the cannons of the wicked than against the prayers of the righteous.


    AR. CHL Instr. 07/02 FFL
    Like custom guns and stuff? Check this out...
    http://bobbailey1959.wordpress.com/

  5. #5
    Senior Member Array The Old Anglo's Avatar
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    Quote Originally Posted by hotguns View Post
    if you shoot until the threat ceases, none of this extra curricular stuff matters much.

    Whether its 5 shots of 9mm or 4 shots of .40, the guy getting shot isnt going to care.

    Go with what you can shoot well. Shoot the biggest caliber you can comfortably shoot.
    Comfortably shoot, means, shooting as fast as you can and hitting the target.

    perfect!!!.

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