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[–] Kick_Start 0 points 2 points (+2|-0) ago 

Is the 357 Sig bad? NO! It is a very reliably performing 9mm bullet, but it is does not offer significantly better terminal performance compared with the best current 9mm ammunition. When firing through heavy clothing, automotive steel panels, automobile windshield glass, interior wall segments, exterior wall segments, and plywood, both the 357 Sig Speer 125 gr JHP Gold Dot and 9mm Speer 124 gr +P JHP Gold Dot exhibited nearly identical penetration and expansion results THROUGH ALL THE DIFFERENT BARRIERS, as demonstrated by both our testing and that of the FBI. Most 357 Sig loadings, unless the fail to expand, do not offer excessive penetration; in fact, the exact opposite, under-penetration, can be a problem. Several .40 S&W and .45 ACP loads offered superior terminal performance through barriers compared to the 9mm and 357 Sig loads. In addition to having tested virtually all the handgun ammo available in lab settings, we have also had the opportunity to analyze numerous OIS incident forensic results and have not observed any greater incapacitation in actual shootings with users of 357 Sig loads compared to those users of 9 mm, .40 S&W, or .45 ACP who are using equivalent modern, well engineered ammunition.

- Dr. Roberts