Excellent advise from Popeye and I agree 100%.

drh, I can understand you wanting to try different bullets and the new gun!!! However I agree under 1" groups with factory mo is very good and the interlock will work good for whitetails up close and longer range (I would certainly consider it over the others, especially how well it shot for you). I will say it once more if you are looking for an accurate bullet in all my rifles the SST or Ballistic tips out preform all others, however only marginally in some cases. It is up to you, what ever you feel best about is generally the best choice.

Good luck and I can see your well on your way to having a barrel of fun with the new 270.