Well, this may not help, but I'll venture out from my quiet corner...
I just finished developing loads for a Remington 700 STS (very similar to the "P") in .308. I found the SMKs to be stellar, well under .5 MOA out to my 300 yard range. Mind you, I'm not physically capable of shooting better than that at that range, not with a light rifle.
But the lighter Accubonds were not far behind, well under 1 MOA. But the180 gr Accubonds were pushing down to below .5 MOA, even though it was the end of the shooting day for me (I can't shoot even .308's more than 50-60 rounds anymore, before my accuracy tanks).
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