Wow, the Underwood 90 gr Xtreme Defender is something else....

[Molon]

. . . no defensive handgun ammo does particularly well after hitting various barriers, and more often than not they just turn into ball ammo....

Your statement is flat-out false. Here's two examples of 9mm Luger ammunition that expand and meet the FBI penetration requirement after passing through an intermediate barrier of automobile safety-glass.













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[ggammell]

Your statement is flat-out false. Here's two examples of 9mm Luger ammunition that expand and meet the FBI penetration requirement after passing through an intermediate barrier of automobile safety-glass.....

Worth noting MAC used the big box store variant, the 124 non +p, for the test. I cringed when I saw he wasn't using one of the two most commonly used variants.