If you are interested in them serving as full time sunglasses and shooting glasses then you may want to consider sporting glasses by Rudy Project, Oakley, Smith or a similar company.
I use a really old pair of Ray Ban's and a pair of Rudy Projects for hunting and they are both photochromic and work equally well. My sons use sporting glasses for bird hunting and love them.
Some folks on this site complained about the sporting glasses not sitting high enough and blocking their vision but I have not had that problem.
