Quote:
Originally Posted by mag318
The M&Ps are strong pistols so as long as you shoot quality ammo through it I wouldn't worry. Nato 9mm such as Winchester or Federal are slightly hotter than non+P ammo and perfectly safe in any M&P including your Shield. Smith & Wesson and any other manufacturer will tell you that the use of +P ammunition can hasten wear to your pistol and S&W recommends against using +P+ ammo in any of their pistols. For practise I shoot mainly Federal 147 grn FMJ because this is the weight of my preferred carry rounds. Many prefer +P ammunition for carry and non+P for practise. Whatever you put through yours it's unlikely you'll ever wear a properly maintained pistol out. These M&Ps are tough.
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+1. I personally wouldn't shoot a lot of Nato or +P at the range - I usually use American Eagle of Speer Lawman at the range - Shooting a limited amount shouldn't cause any problems. I shot about 50 rounds of +P out of my M&P9 just to see what it was like compared to the +P 45 ammo I used in my CCW 1911.