I'd use hard cast bullets of at least 270 grains or so. The 44 is never going to be too much for moose, but it might be on the small side. Penetration helps to overcome minimalism. (Hows that for gacking it?) I DLPed a small brownie this summer. After I finally decided to poke him with the 12, it was a 3" Brenneke "original" which I used, broadside. It stuck in the offside shoulder; incomplete penetration. I went back after a few minutes - after I put clothes on- and took the 45 Colt Trapper carbine which was loaded with 320 home, hard casts alternating with 300 Sierra SP which are very hard cored. Two shots running longitudinally from the front on the struggling animal. Both exitted.
I know Sierra makes a similar 300 for the 44 though it is a bit longer and more tapered up front. It would likely work as well as a hard cast if you were intent on using jacketed.
