Case head lip scored

[Fred]

sorrry for the delay aa 20" lite hard use bolt dpms low pro upper psa lower a2 stock and buffer jp adj. gasblock however I found what my problem was poorly sized cases! I started a one and redid every thing found my problem. She runs like a thorough bred and cuts holes at a hundred yards. the AA barrel is worth waiting for all you need is to plan ahead a little farther.