well the weather held out on me and I got to do some initial testing.
All I really had to work with was 142 grain data so below were my charges and velocities.
I was using H4350
40.6 grains - 2562 , 2575 , 2547 AVG - 2561
40.9 grains - 2597 , 2586 , 2609 , 2618 AVG - 2602
41.2 grains - 2611 , 2610 , 2610 , 2618 AVG - 2612 (This is the most consistent handload ive ever had)
41.5 grains - 2634 , 2644 , 2668 , 2644 AVG - 2647
Factory Hornady 147 grain match (control) - 2640 , 2600 , 2595 , 2655 AVG - 2622
I read over on snipers hide I believe that the hornady claim of the factory ammo reaching 2695 is a typo confirmed by Hornady over the phone (stated by the poster) and that the velocity is actually 2650 which seems alot closer to what im seeing.
The funny part about my test loads is every group was good. I usually shoot 4 rounds and measure the smallest 3 for group size because its so hard to be consistent for 5 shots in a row.
Each powder charge group measured right around half moa. the control group with factory ammo was around 3/4 moa.
my final charge of 41.5 grains did show a little flatter primer than the factory ammo did but no other over pressure signs.
maybe a slight hint of the primer starting to crater but there is still more room to go up.
I may try 41.7 and 41.9 grains to see what my velocity is.
my goal was to match the factory ammo but im not sure if its worth it to try and squeeze more velocity out.