I dove in the pool at Starline for my .270win. I bought a batch, loaded my pet load. the cases measured out very consistent out of the box, very few necks out of round. Lengths within 0.005 of each other, Neck thickness was very consistent. I segregated all within 0.4gr in weight. Cases not within 0.4 went into a coffee can. There were eleven in that can when I got done, that surprised the heck out of me. Shot and reloaded a couple of dozen 9 times. They performed as well as Starline's straightwall pistol cases. Based on that experience I bought 2000 cases, for a lifetime supply, all the same lot number. Since the pandemic hit Starline hardly has anything available, glad I jumped in the pool when I did.