match grade

I recently heard about, and I’ve been doing some reading on Lubing bullets with HBN. This was with match bullets in the application I was reading about. I was just curious if anyone has done so. It sounds good in theory if somewhat cumbersome.

I've reloaded several combinations with various bullet and powder types but have not been able to go to the range yet to test them out (work, lots of work). But, what makes a good load? It's a combination of things, obviously, but what things have more of an effect than others? If I can...

What kind of accuracy gains do you normally see when switching from run of the mill ammo to factory match grade? I recently built an AR-15, and up until this point I've mostly been shooting mixed ammo (.223/5.56 of different weights) at 25 yards to test reliability. For the first time I settled...