Really depends on load / pressure you are running. If you are running higher pressure loads - 6 or 7 on Hornady and Norma if you are lucky. Never ran Black hills or Lapua. I have run Peterson, ADG and currently Alpha OCD. I am on my 10th firing with OCD and a modest - not hot load in my GT. The primer pockets are still tight, no issues, still shoots good. There is also a significant cost difference between those brands. I have learned with Brass, as with many things related to shooting sports, you get what you pay for.