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Old November 21, 2012, 08:43 AM   #7
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Join Date: October 20, 2007
Location: Richardson, TX
Posts: 7,267
...when every factory and independent lab test concludes that 90% of those defensive hollowpoints needs a minimum velocity to open up, that cannot be provide by that 3.2 inch barrel?
I find this statement dubious. What caliber, loads, and firearm(s) are we discussing here? Who did the tests and when?

Most recently-published ballistics tests using modern JHP loads in the major combat/LE calibers (9mm, .40S&W, etc.) seem to have the exact opposite success rate- most shots do open up, even when fired from short barrels through intermediate barriers such as auto glass.

The 90% failure rate echoes tests published in the 1980s, but bullet design has come a long way since then.
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