Anybody have load data for 140 gr sierra gameking with imr 4064 out of a .270? thanks.

I got to max load for a friend with 47gr of 4064, but approach causiously. This is max. Its the strangest thing. He has a win70 superlight and this is the only load that will shoot less than 2MOA. And this load litterly shoots 0.5MOA. I tried ballistic tips, and 4350, and all kinds of combos.