Odd things that can go wrong 3

With your 1911.

What happens:
When they made the barrel, the did a horrible job on the head spacing.  It head spaces on the cartridge rim, so if you bore that chamber and extra eighth of an inch...  Not in spec.  But you find barrels like this.  Old ones, especially.


What this causes:
Often?  Nothing.  The extractor hold the case against the breech face and the firing pin can get to the the primer and do it's thing.  The pistol appears to function fine...  It's still not good, per se.