Declining sales. That's the reason Ruger gives, anyway. Whether or not that's true, or if the new management just wanted to make room to build some new design that they got a wild hair for, we'll never really know.
How can the strongest BP revolver available not have a market?
.44 Colt 51 Navies aren't HC.
Most of the muzzleloading sidelock rifles that are mass produced aren't HC.
I call corporate BS. Just like when Mossberg stopped production of the 9200A1 Jungle Gun and their bolt action turkey guns in order to build a butt ugly, overpriced single shot rifle, and called it a "manufacturing decision".
I don't believe anything that is said by anyone who want's to separate me from a good chunk of my hard-earned money.