09-24-2012, 02:08 AM
I understand where you are coming from but the observations I have with the 77 brain Sierra Match King from the .223 covers both cut and buttoned service rifle barrels, which you point out are relatively consistent velocity, I see about 200 FPS variance even with consecutive runs of barrel blanks chambered with the same reamer. But even more telling is that we see the same results with match rifles (space guns) with 24, 26, 28" barrels which can be 300 fps faster still. They all shoot those loads well.
Bob
Bob
