MacEntyre
Shoot on Sight!
2A Bourbon Hound OG
Charter Member
Benefactor
Life Member
Multi-Factor Enabled
Sounds like we have the same friend. He showed me too, how bullets jump right over the feed ramp. It makes a particular swishing sound when it happens correctly. If not, you can hear a couple of clunks.I had a great 1911 guy work on mine at his kitchen table. I had some issues with it, and it ran like a sewing machine, post visit. And I used it where my life depended on it. He quickly told me if the mags were adjusted correctly, the bullet nose would never touch the feed ramp. There are a very few exceptions, but not many. It was amazing what i learned about a 1911 in the two hour visit.
That's how you know that a barrel feed ramp means they've given up on controlled round feed. With those longer ramps, the bullet is supposed to hit and run up the ramp, into the chamber. JMB designed it so that as soon as the tapered feed lips of the magazine let go of the round, the case rim has risen up between the extractor hook and the breechface so the case is held firm; the magazine keep pushing the fed round up, and it lines up with the chamber before it ever gets to the feed ramp.