I stumbled across this chopped up barrel yesterday while looking for something else.
We coated parts of it with gun kote flat black, baked it, rubbed the barrel with a car key, then threw it in a bucket of salt water and left it there for 2 weeks.
It's been wrapped up in a t-shirt in my unheated garage for over a year.
Here is a close up. The line on the barrel is where we rubbed it with a car key. No rust...
This is rugged stuff.
We coated parts of it with gun kote flat black, baked it, rubbed the barrel with a car key, then threw it in a bucket of salt water and left it there for 2 weeks.
It's been wrapped up in a t-shirt in my unheated garage for over a year.

Here is a close up. The line on the barrel is where we rubbed it with a car key. No rust...

This is rugged stuff.