This evening I loaded about 50 cases using Starline brass. I had bought 100 at the gun show last month and decided to try them as I've heard much good about them. I can tell you this, they are excellent. The OAL average was superb but, it was the primer pockets that got my attention. Each seat of a new primer felt like the one before it with no deviation in pressure or how well you could feel the primer hit bottom.
I've always used Winchester brass 80% of the time and you can feel a variance in just how hard or easy it may be to seat them. Some had to have the primer seated a bit further using more pressure as I couldn't feel them seat and felt a slight ridge like they weren't seated deep enough. Not with Starline. All felt the same so, that's great QC to me and those won't be the last I buy.
I've always used Winchester brass 80% of the time and you can feel a variance in just how hard or easy it may be to seat them. Some had to have the primer seated a bit further using more pressure as I couldn't feel them seat and felt a slight ridge like they weren't seated deep enough. Not with Starline. All felt the same so, that's great QC to me and those won't be the last I buy.