RZ 10 FTF issues

[swinokur]

Took my new RZ 10 to the NRA range today.

Failure to feed constantly, slide wouldn't go back into battery, etc.

I suspect the 180g TMJ Underwood ammo is the problem. It has a wide flat meplat. Before I call DW, I'm going to try so Freedom JHP and some GA ammo. It did this with both Tripp and Wilson mags.

Thoughts or suggestions appreciated. I will try again before calling DW.

Thanks