Re: .308 and Ramshot Tac?
Yes. We load the palma ammo for our jrs using TAC and 155 Noslers or Sierras. Using a high round count rifle they can consistently shoot into the high 180s, low 190s with it at 1000. Thats about what I would expect them to shoot with about anything else.
Ultimately, will depend on what your rifle likes and your accuracy needs. OUr 1000 yard target has a 2MOA 10 ring, but we are shooting sling/irons, to put it in perspective.
Hope that helps.