325 WSM actual factory velosity

[shooter12]

As title says.
I was playing a bit with my Winchester 70 Coyote and 220 gr Sierra GK and
used IMR 4350 ,4451,Ramshot Big Game and could only get 2750 f.s with a good accuracy. Past 2800f.s signs of high pressure were showing up
Could anyone here get 2840 f.s with 220 gr bullet out of 24 inch barrel?
This is what Winchester I believe claims for 220gr factory load and what powder did you use?