This is a discussion on M&P 9 Pro 5" accuracy decline within the MP Full Size Pistols forums, part of the Smith & Wesson MP Forum category; My M&P Pro 5" is a couple years old now with about 10K rounds through it, and I've recently started noticing some severe accuracy problems. ...
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|February 12th, 2017, 05:24 PM||#1|
Join Date: Sep 2013
M&P 9 Pro 5" accuracy decline
My M&P Pro 5" is a couple years old now with about 10K rounds through it, and I've recently started noticing some severe accuracy problems. I put it on paper at 50 feet and where it once shot cloverleafs, it now groups like a shotgun- 4 to 5 inch groups. I suspected the barrel was worn out so I bought a new Storm Lake 9mm barrel, and the groups are the same. I'm shooting off a rest, so I know it's not me. I've tried various factory ammo and several different reloads I run in competition, and the performance is poor with everything. Any ideas what could be causing such poor groups?
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|February 12th, 2017, 11:51 PM||#3|
Join Date: Sep 2013
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|February 13th, 2017, 06:06 AM||#4|
Join Date: Jul 2016
I would check the slide for wear. Pretty odd that a barrel would wear the bore out with only that many rounds...unless you are shooting super high pressure rounds. Was the storm lake barrel gunsmith fitted, or was it the normal size fits all drop-in that everybody buys off the street(???). If the barrel isnt fitted properly to the slide, and the slide is worn, good luck getting any accuracy.
|February 13th, 2017, 09:00 AM||#5|
Join Date: Sep 2006
I moved this thread over to Full Size Pistols, that forum gets tremendously more traffic and is more likely to find some answers to your problem.
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