Update: I spent the morning loading up 50 rounds with the aforementioned bullet and powder. I have also been working on the trigger with an Arkansas stone. That and a 14 lb. Wolfe mainspring has gotten the now smooth and crisp trigger pull down to 3.75 lbs. Pretty happy with the action now.
I also changed out the sights to some Bowen sights I took off of another Redhawk.
Now to do some shooting to see what she will do.