One of the principles at work that keep Glocks running is that they have very generous chambers...that's not a bad idea for a serious gun.
On the other hand, I constantly run into a LOT of problems that need to be fixed with 1911s from every manufacturer, but once those problems are fixed they run well.
The various issues are too long to list, but it's almost a given that function issues, that are related to the pistol, most often arise from attempts to "improve" the original JMB design specs.
Issues with ammo and mags are often a result of the same principle, ie., making alterations to the original specs.
It helps to keep a 1911 clean and properly lubed as well.
