Cleaning my Great Plains 50 cal ...

[Rock]

OHH, like the heat gun idea/
But, with stainless Ruger Old Armies, remove the grips and send through the dishwaser.
[When the lady of the house is not looking. do not ask me how I know that!]

Here's a different view on the subject. I haven't tried this yet but it is interesting.

http://www.geojohn.org/BlackPowder/bps4.html

[dogtag]

I cleaned a carburetor in the dishwasher once. Wife wondered
why the dishes smelled funny. Pretty close call.

[Pete D.]

I have found the GPR very difficult to clean. I do the hot water and detergent routine, plug the flash hole with a toothpick and let it sit for 15 minutes. I do the boiling water and flush routine.
Then I run moosemilk patches alternating with dry patches. I have run as many as 20 patches and not had a clean patch come out of the gun.
When I finally do get a clean patch, I put an oiled patch though and it invariably comes out black.
Go figure.
Pete