I've been shooting factory hornady 165gr. btsp @2800fps
for several years with various bolt actions, most currently
my standard savage 111.
Has always shot consistently well with 1" or better groups @100yds, but I need to reach out to 200-400 yds ranges to see how the groups react for longer range hunting.
Anyone been using this exact round at longer ranges that can
comment on how well the groups stay together?

Aceman.