"These Boo(li)ts Are Made For Walkin'... and that's just what they'll do...", depending on how many rounds are in the magazine as shown here:
Some folks think the bullet nose slides up the fame ramp. It will if the bullet gets set back significantly into the case upon initial frame contact. But this ammunition (Federal American Eagle 230gn JRN) set back very little (with amounts of 0.002, 0.001 0.0005 and 0.0000 inch in the 7th through 1st round, respectively), demonstrating that if the case has a good grip on the bullet the bullet glances up off of the frame ramp and into the chamber.
Rounds were chambered from slidelock with the gun held horizontally in an overlapping thumb grip. Petunia had a 14lb recoil spring installed, was pretty clean but had little oil. Contact areas are highlighted in yellow. There was no contact with the barrel ramp when the 7th, 5th and 3rd rounds were fed.
The lower, smaller contact areas in the two middle pix may possibly be from the round below the one being fed. Don't know for sure, but one of them did have a tiny soot smudge on its nose. If so, note the steady upward progression of the larger contact marks.
And just for grins, here's how a cartidge with a weak grip on the bullet behaves when fed as the top round in a full 7 round magazine:
This one hit the ramp about as far down, but didn't glance up off of the ramp because of the large amount of bullet setback (0.020" in this test run). It sort of slid along the ramp, robbing the slide of additional kinetic energy. This one ended up in a 3 point jam.