You should be able to accurately shoot anything from 69 gr. on down from a 1-9 twist gun. POI will change will be insignificant based on bullet weight alone out to 200-250 yards. Beyond that you may find the heavier projos better suited to buck the wind.
As always, each individual gun will have its own characteristics so ymmv.
You will have to decide if you want a fragmenting or expanding type of bullet based on your anticipated threat. Better yet, some of both. With that in mind i keep mk262 and hand loaded 45 gr tsx rounds in mags ready to go. Why 45? Only because i could not find any 50-62 gr bullets at the time and i wanted as much velocity as possible for an sbr.
As always, each individual gun will have its own characteristics so ymmv.
You will have to decide if you want a fragmenting or expanding type of bullet based on your anticipated threat. Better yet, some of both. With that in mind i keep mk262 and hand loaded 45 gr tsx rounds in mags ready to go. Why 45? Only because i could not find any 50-62 gr bullets at the time and i wanted as much velocity as possible for an sbr.