For Commercial brass I used Winchester brass when possible. I have also used R-P, Norma, and Federal. I would stay away from Federal brass if at all possible. Federal brass is notorious for the primer pockets becoming slopply/loose after even one firing...........
For Military brass, I use Lake City and Lake City Match brass......
You have to keep in mind that Military brass has less case volume as it is thicker and softer then commercial brass..........
I bought 100 brand new Winchester cases years ago and used them for 20 firings out of a Custom built M1A match rifle. I inspected them and Full length sized them and trimmed the cases every 3 or so firings. After the 20th firing I simply chucked them as they had paid for themselves and didn't want to push my luck any further..........I would not recommend going more the 5 - 6 firings on brass........