Ammo that doesn't function 100% in P99?

[MTPD]

Has anyone identified any particular 9mm ammo that doesn't function 100% in full size P99's? I'm especially interested in feedback on +P and +P+ JHP ammo.

[Nowhere Man]

I have NEVER had a problem with ammo in my P99.


Dave

[10mm Steelhead]

I've never had a problem with 9mm. I did have a problem with Rainer bullets in my reloads for the .40. The rainers are too soft and would deform and jam on the feed ramp.

[blueiron]

My defensive load for my P99 is the Winchester Ranger 127gr. +P+ round. Always 100% function.