1911s (those made by reputable outfits) actually have pretty good reliability numbers. The stereotypical reason people say they jam is because during the Vietnam era most of the 1911s the military used were the same ones they used in world war ii. And even something as immortal as the 1911 wears out. If you go back and read first-hand accounts of the Vietnam era, especially those in the training environment, where the older pistols were located they had no business being in service.
So in initial Army trials they fired 6K rounds through the 1911 with zero failures.
https://www.americanrifleman.org/articles/2011/5/24/the-trials-of-the-m1911/
1911s (those made by reputable outfits) actually have pretty good reliability numbers. The stereotypical reason people say they jam is because during the Vietnam era most of the 1911s the military used were the same ones they used in world war ii. And even something as immortal as the 1911 wears out. If you go back and read first-hand accounts of the Vietnam era, especially those in the training environment, where the older pistols were located they had no business being in service.