Time to see if Ruger steel is easy to rust....blue that is....rust blue. Folks say its hard to get it other than purple....I say that's cause they hot tank blue it too hot!
With luck, its less hard to rust blue than a 94 Winchester receiver, which I must say, takes a bit of work but in the end, rusts/blues pretty quickly using this old school method.
First step, clean up all the small parts and the cylinder. Get the old blue off with a simple wire brush in a drill press at 3000 rpm....a nice matted finish and I find a few small pits in the cylinder.....no worries, they weren't really visible before and they should hide just as well when I'm done. In the end, they are deeper than I want to polish out....leaving either divots or making the cylinder a bit smaller. The matt wire brush finish and kissing the cylinder with 120 and 220 (since large surfaces are difficult to wire brush finish evenly, but the 120/220 kiss will matt it nicely and have all the lines going round and round the cylinder....I finished the lines in the flutes front to back).
For this batch, only the cylinder is final finished with sandpaper, all the rest of the small parts are kissed matt with the wire brush. Here they are, degreased and awaiting the first very wet coat of Pilkingtons and the first 1 hour sit (second coat is nearly dry and a 3 hour sit, then the first boil tonight!)
10 minutes into the first wet coat, the steel is already beginning to color and develop a light bloom of rust. This bodes good tidings for the job. Lots of contours to deal with and depending on how these parts color up over the next days will dictate whether I rust blue the entire gun or try out a home hot tank blue instead. I am not looking forward to carding and dealing with all those curves, nooks and crannies....revolvers are hard to rust blue!
The flat gate is a bit different alloy, not hard but seems to puddle the solution. It may need a more matted finish than wire brush, it may just need The Special-High-Intensity-Treatment to get it to start a nice bloom of rust for blackening....much like Win 94 receivers and Marlin Magazine Tubes.
That'll be neat looking, a greyblack dot were the steel of the ejector rod comes thru the brass ejector button....
One hour from now, the second coat and then three hours later, first boil. Should be able to boil again twice tomorrow before I go visit a buddy and maybe up to 2 or three more times Sunday. With luck and good Southern Humidity, my Garage-Come-DampBox will do its usual good job and I'll know by Sun/Mon whether to continue the frame and barrel for rust bluing or start some experimentation on scraps of gun steel via drain cleaner caustic/hot blue....(yep, drain cleaner, that's what yer factory gun and custom gunsmith hot blue gun is blued with....really expensive batches of what is pretty much strong household drain cleaner)