For about 25 years, I used only Norma and Remington brass. Then, about 10 years ago I had a complete head separation on a .30-06 Remington cartridge that had been reloaded only 3 times.  The rifle was an "03 Springfield, manufactured in 1918. The load was moderate with 45 grs. of Accurate 2520 pushing a 165 gr Hornady BTSP Interlock bullet. Candidly, that incident scared the hell out of me. I ditched all my Remington brass and switched to Winchester Brass for the 5 calibers I reload for. 
I find the Winchester brass easy to work with in the case preparation process, and have not had any problems with any reloads.  I still use Norma brass for my Savage model 99 in .303 Savage because there is no other brass available for that caliber except Privi and Graf's private label brass.