Any competent gunsmith can face the action off. Typically they are 1.200" across the 3&9 oclock flats. With a 1.200" lv,m24, or m40 barrel there will be just a little barrel showing at the 10:30& 1:30 flats. If the smith just barely breaks the shoulder of the barrel u won't ever notice. The two i have were done by Brian Wick in Il, both are hammers exhibiting 1/4 moa at 1k in calm conditions. Both actions needed very little work to true up. The action threads are 1"-16tpi.