I really enjoy my .45-70 Handi. I hunt primarily in the woods, and in those woods 50 yards is a long shot, so I mounted a Bushnell Banner 1.75-4x shotgun scope and took it off to the range to sight it in using my handloads with a 425 grain cast FN at about 1350 fps. It was putting rounds into almost the same hole at 50 yards. The 425 grain bullet at 1350 fps does everything I need to do. Sure, it could be loaded much hotter, but I don't see the point. When I hunt where I might have a 150 or 200 yard shot, I use a .30-06.
For just plain fun shooting the .45-70 can't be beat, and if one handloads (and especially if one casts), its actually quite cheap to shoot. The brass lasts a long time at trapdoor pressures, and when loaded with a slow pistol powder like 2400 only 20 something grains are necessary.