Deepest penetrating rounds for the .40?

Which bullet penetrates the deepest for the .40?

  • 155 grain

    Votes: 1 6.3%
  • 165 grain

    Votes: 4 25.0%
  • 180 grain

    Votes: 11 68.8%

  • Total voters
    16
At what velocity? What type of bullet? Depth of penetration in what exactly? Do barriers figure into it? The question, at least in it's present undefined form is not answerable, but I think you are aware of that.
 
At what velocity? What type of bullet? Depth of penetration in what exactly? Do barriers figure into it? The question, at least in it's present undefined form is not answerable, but I think you are aware of that.

What he said.
 
Assuming similar bullet types at standard loadings, the 180-gr bullets should give superior penetration to anything lighter. Naturally, a 155-gr FMJ will likely penetrate deeper than a 180-gr JHP.
 
A heavy, non-expanding bullet, driven hard, will penetrate deepest. Try these Double Tap 200gr WFNGC (hard cast lead, flat nose, gas checked):

http://www.doubletapammo.com/php/catalog/product_info.php?cPath=21_26&products_id=210

40sw%20200BTB.JPG
 
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