I read the very informative article by Mr.s Harris & Light and pretty much tracked all of what they had to say. However, I was left with two questions. The first one pertains to the quote:
"Ammunition loaded from brass which has been neck sized only, may group appreciably tighter."
My question, why is that? Why doesn't full sized brass with a neck die group as tightly?
Second question is regarding Mr. DeSimone's use of CLR when quenching his brass.
What is the benefit of the CLR?
Please excuse my rookie-ness!