The earliest .44 "Mountain Revolvers" and "Mountain Guns" had Forged Parts that were flash chromed.
Forged and Color Hardened would not be original to the gun.
Many folks however mistake the MIM parts with their cloudy metal finish to be Color Hardened.
It is possible that someone upgraded the MIM parts to Forged. In fact, I did on one of my first Mountain Guns, a .45 Colt. The MIM parts were some of the very first of such and the fit was bad. Trigger was terrible. Worst I had seen on a Smith & Wesson product in 35 years of collecting. Rather than try and tweak the MIM parts I installed a Forged, Color Hardened Hammer and Trigger.
Slim, As Drew has stated, your gun is, now, a high end shooter.
Magna-Porting only makes a revolver more pleasant to shoot. Shoot it and enjoy it. That's what I look for in a gun. If I wanted just to look at them.......I'd put gun pictures on the wall!!!! njgapjgj Bob