About 2 weeks ago I bought a Millett red dot from Midway for my .44 Mag Super Blackhawk. Best thing I ever did!
It is rated as being able to stand heavy recoil. It didn't take but about 8 rounds to zero it.
I back the 5.5 inch target out to 50 yds and easily put all 6 bullets in the 5.5 black. 3 of them could be covered buy one of thes little round "repair" stickers.
I would highly recommend this Millet.
I found my preorder notes and :
The Millet is part # 459296 - $74.99
The base used to mount (without the rings, I already had them) it to the SBH is 359216 - $34.99
Hope this helps.