Then push a patch through the barrel.

Spray some more down the barrel and run some more patches through the barrel.

In this picture, you can see the water running out of the muzzle as the patch is pushed through.

Also spray the bolt with the water solution and dry it.

Repeat this several times, until the patches are clean, then run a few dry patches to dry the barrel.

I then spray WD-40 through the barrel.

I then patch it dry and spray WD-40 once again for the ride home.

Once home, I used my regular cleaning method to clean the barrel.

I like a half and half mixture of Kroil and Shooter's Choice.

I scrub the bore with a bore brush and patch it until clean.

Then I lightly oil the barrel for storage in the safe.

Conclusions:
Sounds like a lot of trouble?

Well, you get a brand new barrel only once. If you let it rust, there is no way to restore it to "perfect".

A little trouble and you will always have a "like new" firearm.

It's worth the trouble!