I worked on the revolver for a few minutes last night. I apologize for the poor quality pictures, but the light isn't the best for taking them. Also, I am almost ashamed to post this considering the first rate machinists and gunsmiths we have around here. I am sure they will cringe when they see this! But there are a few things that can be done at home if you are willing to start them and not be scared of ruining your revolver.
First off, here are a few pictures of the revolver before. I believe it hasn't seen many rounds at all. Someone has tweaked it a bit though. It has a steel ejector rod housing and appears to have an eleven degree forcing cone.
Looks unfired from this angle
The first step is to measure and mark the barrel. I was originally going for 3.75", but that would put the cut right on the ejector screw. So I had to back up to around 3.50". I use a pipe cutter to give me a straight line to cut.
No backing up now
Before I completed the cut, I wanted to try something to locate the front sight. I will be drilling and tapping this one so I used a piece of the filler from a TC Muzzleloader that I cut down some time back. It has a flat top and concave bottom, plus the screw holes are the right size for my center marking tool from Brownells. Measuring the sides, one was .241 and the other was .245". I filed the "tall" side down to .241" on the edge that touches the barrel, so I would have a level top when I placed it on the barrel. I'll take better pictures and explain it better when I mount a front sight.
It also checks out when you clamp a straight piece along side the original front. Either of these methods will work when leveling/locating a front sight prior to cutting. Plus it is good to check this along with measuring the thickness of the topstrap at each side rather than relying on leveling only. I have seen a few of these Blackhawks that had a bit of difference in the thickness of the topstrap from side to side. I believe it is due to the fact that they are hand polished after casting. Also, reference level to the top and bottom of the window just to make sure before you go to marking and drilling.
Now that that is done and I know I can reference the level to locate the front, it is time to saw. Follow the line for a straight cut.
Notice where 3.75" gets you
Then touch it up with a file and use the Brownells 11deg cutter with 44 pilot. It is important to file it flat(ish) before starting, otherwise you will get chatter marks from the cutter. They are hell to get out....
And here is where I stand
Now to choose a front sight. Here are some options from the parts bin. Of course I could be boring and just use a regular Ruger .595 front. What do ya'll think I should use?
Next I'll tackle the ERH. Never shortened one, but I have a few ideas on how I want to do it. Plus I have another trick to try out....