As much as I enjoy my .44 Mag, I found I am enjoying the new .460 Rowland even more. This is a converted .45 semi-auto, (Mines a Glock 21), that gets a new barrel, chamber and spring, and can then shoot the .460 Rowland cartridge. Nearly identical ballistics and power to the .44Mag, but much less recoil and more rounds in the magazine.
I've posted a couple writeups on it here, maybe the best is comparison shooting watermelons. I still chuckle a bit every time I watch it.
Holy cow! That thing disintegrated those last two watermelons! Great video!