So far all I have ran through the 10mm has been 180 gr, that is usually all the 10mm I load. My full size 9mm blowback is a 16 inch RRA and it has a feed ramp but my Fox Trot Mike 12" pistol doesn't appear to. The RRA uses Colt/Uzi mags, I picked up some surplus 25 rnd UZI mags and converted them to fit and like them a lot more, I know there is not a lot of difference that the RRA mags (32 rnds) but they just handle better. They seem to be more robust and pretty hard to tear up.
I did take the ETS mags apart and applied some automotive wax to the inside and sanded some rough places on the followers and they are doing better so maybe they just need some wearing in to be 100%, who knows.
The FM pistol uses Glock 9mm mags and doesn't usually have a problem at all. I have ran 90 gr up to 147 gr in the pistol with no problems.
Steve..........