Thinking of buying a used Blackhawk in .45 Colt. Largest caliber I currently own is a 10mm (.357 Mag in a wheelgun). Thinking of a hot-loaded .45 Colt as a good bear (mostly black) gun. Any reasons why I should/should't buy it if the price is right? Opinions as to the .45 Colt (in a Ruger) compared to a .44 Magnum are certainly welcome (keep in mind that I do handload).