Exactly! I've got a 26", 44 Mag Encore barrel and it worked great! About 90 yards, very good penetration, very short, very vivid blood trail. However, in the interest of always wanting something better; I've been toying with other options. The 445 SM would be a natural and pretty easy/cheap. Another option is to wait a bit and see if they tweak the regulations in any way. The current regulation restricts case length, not chamber length. That means a 460 case shortened to the max length is OK. In a single shot like the Encore, a 300 grain bullet can still be seated to the same overall length as a stock 460. Of course, some wildcat is another option. One possibilty is a slightly shortened WSSM case with a .357 bullet; that should be about the same as a 358 Winchester.
I'm waiting to see if the regs are tweaked in any way. (but I am getting some 445 brass ready!)
Take care, have fun....
Roger D. in Southern Indiana