What I am hearing is you already had your mind made up, and can't shoot/are not interested in shooting the difference, so you aren't going to bother, and that's cool.What is amazing is I asked a relatively simple question pertaining to Lake City 223 or should I say 5.56 brass because Lake City is not marked by either 223 or 5.56 designation. That simple question basically is it worth the time/effort to sort that 223/5.56 by the number stamp that is used. I have been told that number marks the year of production. As with other posted threads I have read there are conflicting sides. One main issue is that with a short barrel Semi-Auto fired from 25 feet to 100 yards the inherent accuracy is such that no it is not worth the time and effort for Blasting Ammo. Yet in all I have read very little is said about the use of Lake City 223/5.56 in a bolt action rifle that will be regularly fired out to 200yds and on occasion 300yds...
The interjection of "well bullets, primers, powder, gun, shooter skill all make a difference" then with that just what happens when all those things are tolerance stacked? All loosely stacked and you have absolute junk, all very tightly stacked results are the opposite. But again this question wasn't posed as what makes the most accurate ammunition. I am fully aware that the correct bullet, bullet weight, powder make and powder charge, primer, gun, scope are all components of an accurate load. The question was simply about one component.
Well I do not have the eyesight, magnification and light to sit and read all the different dots on the cases to sort the SCAMP to narrow it down to which plant and machine it came from. I also do not have the patience to do that though it could be done.
So what I have gleaned from this discussion and the other articles elsewhere that out to 200yds that there is not enough of a difference in case quality that it would make any significant difference. Farther out than 200yds I guess is still debatable. So I will continue to sort my Lake City brass by stamped number and use that as just a lot control and then spend my time developing loads per bullet and powder.
Though I did find it funny and curious that today I had two competition shooters doing load development on the range today and they were debating primer use.
The other components were relative because if you match great brass with crap bullets or barrels, it doesn't matter, and if you match crap brass with great bullets/barrels, you are doing the bullets/gun a disservice.