These Hombre know their stuff bout the Army Colts. Warms my ole heart.
Never used a Dremel much on them. Diamond files are safer.
Thin washers fer fillin in the barrels arbor hole? Fender washers they are often called. Thin with a little hole in them. I find them at Hardware stores or the stores like Lowes in the screw/washer sections. The lil hole lets them be picked back out the barrel hole after they are sized with a file(impossible to get them perfectly round) but....that makes them stick in there without falling out but lets them be picked back out the hole if needed.
Tunin and trigger jobs? I have re-done several that were done half/arse by a pro. There is a way that is considered "THE WAY" by the pros...some of them.
I do it the hard way cause I'm nuts but "THE WAY" they do it is a good way. I like to angle PART of the hammers full cock notch but the pros that are in the know like to angle the back of the trigger tip.
That is easier ifin you know the difference between positive and negative and neutral angles to the trigger and hammer notch and leave enough of the original tip to the trigger.
Gonna have a trigger job as part of the "TUNE" then ask the gunsmith what exactly does he do to those parts of your gun. Don't let them tell you it's a trade secrete.
Yer hard earned money ain't a trade secrete and just buffin the parts to do a quicky njob ain't a trade secrete neither..
You worked yer arse off fer that money.
You have a right to know what they are actually doing to yer gun. Every single step in the process should be thunked on by the owner.
Am I right or just dreamin? I do have a vivid imagination. There seems to be as many ways to tune a single action and the trigger as there are daisies in the weed patch.
The right way fer the trigger?
Check the angles to the trigger and the hammer notch(leave them alil positive) and then make them right and then....angle the back of the trigger down to get rid of creep and have a nice...."breaks like a glass rod" trigger pull. I like the hard way and angle the front of the hammer notch instead of the trigger tip but.....that's just me and I ain't no pro. The springs need adjusted sometimes too. All that stuff.
Just sayin....know what's being done to yer gun. Know specifically what you want done to it too. Almost like yer gonna do it yer self.