How does one polish a feed ramp?

If you have a motorized dremel tool just use a small sand paper roll on the arbor to lightly smooth the roughness off of the ramp. If you don't have this tool you can do it by hand with a small wooden dowel with fine grit emery cloth rolled around it. Just smooth it out a little at a time, try it out, then smooth it out a little more when it starts to work better stop & let it work in as you shoot.

I believe it was said not to polish ramps on 380 guns due to feed ramps being anodized and posibility of softening the ramp. If you take a needle and slide the tip over the ramp, you can feel how rough is the surface. On a UC9 mm, ramp is part of the barrel and is machined with grooves perpendicular to lenght of the barrel and is not quite visible to naked eye.
Once I started sanding with wetsand paper, grooves started showing. I did not have any failures with my CC380, or UC9mm wright out of the box, but did polish 9 in order to preampt problems and out of curiosity. If you decide you need to polish, no dremel tool. se Use fine grit wetsand paper and gun oil. I used the tip of the pencil eraser as an actuator.