So I bought some defense JHP for this pistol; Federal Hydra-Shok .45ACP 185g. I loaded up all three mags and cycled them through the pistol. On each one of the mag, the first round never chambered correctly. They would all get stuck, midway, up the ramp, on the frame. However, each rounds after would chambered correctly. Prior to this, the 1911 have only saw 75 rounds of standard ball ammo; Remington UMC .45ACP 230g.
Here are some pictures of the frame's feed ramp after the range:
After cleaning the ramp of any residue, you can see the horizontal machining marks. These doesn't help with ammo feed, especially JHP.
Here are some pictures of the ramp free of any copper residue.
I decided to take some 300 grit sandpaper and hit the ramp in a vertical direction (moving from north to south direction of the pistol) to remove the horizontal machine markings. I was careful not to alter the angle of the ramp. I went lightly and try to just remove the scratches. After the majority of the marks are gone, I follow up with some polishing with 600 grit sandpaper.
After 40 minutes of polishing the end results:
I'm extremely happy with the result. I can see reflections off the ramp. It's amazing. Glass smooth feel.
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