We are supposed to do this? *uh-oh*
Humm...
First off, I agree with Will Shuemann, so me and mine do not clean barrels, we just make sure the chamber is fine.
Pipe Clean extractor, and breech face and call it good to go.
Actually I just shoot the darn things, add some lube from time to time as I / we have shot these guns I/we enough to know when they need some.
Dirty guns will run lubed, a clean dry gun won't run for long.
I and mine carry dirty guns, that way we know they run.
I asked one of the gun folks and she said best guess 1700 rds since the bone stock 1911 I prefer had been taken apart.
The other day since I shot it in the rain, I just let her mess with it.
She just removed stocks, tossed the thing in gasoline, hit it with a air hose, and lubed with Hoppe's lubricating oil in a orange bottle, ran the mags , and good to go now.
WE never carry a gun, that we have not fired after being taken apart.
We always shoot the gun with carry mags.
So that gun is Cocked & Locked with 7 rounds total, as I and mine only use USGI or Colt 7 round mags, with dimple follower, and sealed base plates.
This seems to have always worked for me and mine...