I’m speaking specifically on Grendel brass. Guys getting loose primer pockets quicklyFederal brass works fine for me. It is my go to brass for .223.
But I never had enough winchester or remington..I do now and may test it.
I have Lapua in .308 and .223 and my 2 accurate guns want the necks turned on the lapua cases to be accurate.
I anneal every time and this really helps.