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Old 09-02-2021, 08:59 AM

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M&P 22 Full Size Reliability

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This post deals with ammo choices for the M&P 22 LR Full Size pistol and how best to clean the firearm.

I bought my M&P 22 as a companion firearm to a Tippmann M4-22 Elite for competition. Unlike the M-4, which has cycled almost any brand of ammo, the MP 22 has consistently malfunctioned, to the point of never having used it in a match. I haven't yet taken it to a gunsmith, in part because of concluding that I might not have found an ammo it likes.

Recently, shooting CCI Mini-Mag (40 gr–1235 fps) and AR Tactical (40 gr–1200) has almost led me to believe the search was over, but consistency once again hasn't been adequate.

An NRA instructor suggested that it sounded like the problem might be caused by lower bullet weights and muzzle velocities. Yesterday I tried Aquila Interceptor (40 gr–1470). I understand that manufacturer's claims are typically inflated and don't reflect the velocity from a handgun barrel, but the relative performance of this ammo in the MP 22 indicates that I might have finally found a solution.

Another possibility is that the firearm needs to be cleaned more frequently and run wetter. A local gunsmith and a Distinguished Master IDPA instructor have both suggested that it's almost impossible to over-lubricate a modern semi-automatic weapon.

Any comments / suggestions would be appreciated on these two topics.

W.H. "Tosh" McIntosh
LtCol USAF (Ret)
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