Bags far apart might help steady a little if you get good contact, but having the front bag further rearward often seems to give the least 'inconsistency' due to bag giving issues w/varying pressure on forearm - IME.
EVERY 6.5x55 I shot/owned has typically done 1" at worst at 100...at 200, you should be getting 2-3", if not half, w/a gun shooting well, you, your loads, and conditions.
