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9mm vs. .40 longevity

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How much less is the lifespan of a modern .40 (not .45) pistol compared to a modern 9mm?

There's the Glock 17 in 9mm and the Glock 22 in .40, for example. S&W makes the M&P in both 9mm and .40 the last I checked. I think Sig makes both polymer and steel/aluminum pistols in .40. There was the CZ 75 in .40 but the don't make them anymore. I don't recall is Springfield makes their polymer guns in .40 anymore.
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The only soft shooting 40 is the HK USP which was designed to lower recoil by 30% and around the 40cal.
Negative. The Beretta PX4 is a very soft shooter in .40, thanks to the rotating-barrel action. I find it even softer shooting than the USP.

(Assuming you meant to refer only to polymer .40 S&W pistols, by the way. There’s a ton of metal-framed pistols that fit the bill.)
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