Welcome to the site and to the world of handgun hunting. It's great to see a seasoned hunter coming around to the fun and challenge of handgunning.
I think a 44 mag Ruger 7.5" is a great choice. That was my first big bore revolver back in 1980. I would suggest you consider the Bisley hunter model with integral scope mount. You may find you want to switch from irons to optics. Enjoy!