I have a Rem Mod 7, should I go 6.5 Grendel or 6.5 Creedmoore?

[Butterbean]

I just wanted a 6.5 of some sort, it's currently Chambered in .243 (factory barrel). I have a HS Precision stock on it and had the bolt fluted and a Tactical bolt knob installed. Mostly cosmetic? I'm leaning towards the Creedmoore and having the action gone through.

Hi Tac. Who's doing the work? HS? I used to live in Rapid.