I have had good experiences with most of the brass manufacturers as well as not-so experiences. My best experience was from a bag of WWII brass from a gun show that was 30-06 LC. At that time 25-06 brass was virtually non-existent but after reading an article in an old magazine about using the BCBS trim die and a good quality file, I could make my own 25-06. That brass lasted a very long time, annealed twice using a case chuck, for the lack of a better description, to spin the case slowly in a drill in the flame of a butane torch. Finally retired after more than a dozen reload cycles. These days, I try to get Lapua, ADG, or Petersen brass. Failing that, especially for unpopular calibers (224 Valkyrie), I have had decent "luck" with Star-line. I prefer the cardiac brass but am not adverse to using the chevy/ford brasses. I do "pamper" my brass, catching them before they hit the ground/cement at the range, and spend a good deal of time in the "prep" process.