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I've heard this grain can be hard on pistol ,is there any truth or evidence to support this .Thanks in advance .
 

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Glockn Rollin
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2,656 Posts
I have never seen or heard of this before nor any evidence to support it. I assume you are talking about a .40 S&W? I would say maybe it is a little to light for caliber, but not hard on the pistol. I personally carry 165 grain ammo.
 

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"The Sarge"
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668 Posts
Some of the 155gr 40 loadings are loaded "hot" and display more felt recoil along with over expansion and under penetration. The Border Patrol is one agency that comes to mind who have remarked that the 155gr 40s did take their toll on pistols with lots of rounds fired. The 40 S&W, though descending from the 10mm, was born as a 180gr JHP for LE and most pistols in that caliber are designed around the 180gr bullet. I prefer the 165 and 180gr bullets and my choice in 40 business ammo is the superbly performing 180gr HST. Bill
 
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