S and W M&P 10MM Dropping Mags and S and W Cust Service??

[BCD]

I recently bought an M&P 10MM 2.0 with a 4.6 inch barrell. Shoots 180 grain ammo just fine but drops magazines and some FTF issues with Underwood 200 Grain Hardcast. I contacted Smith and Wesson via email and they responded that I need to shoot ammo within SAAMI specs which I believe the Underwood is. Has anyone had luck addressing this issue through Smith and Wesson or on their own?

Thank You !

 

[BCD]

Bump

 

[HandgunHTR]

Are you hitting the mag release during recoil? That happens sometimes depending on the grip and position of the release.

Is it only with that ammo? Have you tried other hard recoiling ammo to see if you get the same result?

 

[BCD]

Are you hitting the mag release during recoil? That happens sometimes depending on the grip and position of the release.

Is it only with that ammo? Have you tried other hard recoiling ammo to see if you get the same result?

I have not tried any other hard recoiling ammo. Is there any you would suggest for bear protection? I'm not hitting the mag release.