just got my 51/2 inch REDHAWK friday. shot about 50 rounds of assorted 180.240 and 300 grain handloads. not on paper so no groups but I had no trouble hitting clay pigeons at 25 yards . By the way it is a .44 mag
I also have a 71/2 superblackhawk.I love it too but I find the redhawk easier to handle in recoil.In any event my favorite loads usually fall around 1000-1200 fps.That makes either of them much more pleasant after 50 rounds.