So, about the Winchester 124gr NATO that cycled fine in the Canik...
Ruger 9E, the NATO FMJ (product code Q4318) averaged 1145fps.
Comparatively, CCI Blazer FMJ averaged the same (well, 1144fps) out of the P320, and that's with a
115gr bullet out of half an inch more barrel. I don't see why the Blazer Brass would be loaded much hotter than the aluminum-hulled stuff. This is similar, ballistically, to Federal's RTP 115gr and Remington UMC 115gr FMJ bargain ammo.