Search:

Depends how 'long range' your idea of long range is.

If you launch a .270 140 Accubond at 3050fps they're still doing around 2000fps at 600 yards with about 1250 ft-lbs of energy so should open up...

If your going to shoot a .270 past 400 you should consider something like the SST or Accubond with a high BC. Factory ammo using these bullets is expensive so you probably want to consider reloading...