Carry Ammo:
Federal 147 gr. JHP (RA9T, or something)
Hornady 147 gr. JHP
Winchester 147 gr. JHP (PDX1 Elite I think it’s called)
Training ammo:
WWB, Fiochi, Wolf, PMC, etc.
I have fired mostly Federal champion 9mm through mine and I carry 124 gr. +P PDX1s and I have not had any problems in my Gen 4 19.
RA9T is Winchester Ranger. 
Only problems I’ve ever had with any Glock I’ve fired was with the Winchester 9mm NATO; light primer strikes that did not go bang. It always fired when cycled through again though.
Looking at some old boxes I never threw away, you are correct. I am herp da derp when it comes to Federal’s number designations.
Thanks for the correction.
You caught that too huh? 
My Gen 4 G19 has issues with light strikers on the russian ammo that traditionally have slightly harder than normal primers.
Other than that, besides “normal” gen 4 extraction issues, it ignites and feeds everything else.
Target ammo: wwb and federal
Carry ammo: HST’s
No issues in my G19s shooting aluminum cased Blazer. Took a pistol class and a couple of guys with G19s each shot a case of Blazer w/o any malfunctions either. The lighter aluminum cases can cause issues though.