So I got the test data for the 190 ATIP's and the H4831sc load with 57.5gr.
Avg. velocity was 2900fps, SD = 8, ES = 25
Average pressure was 69,284! Most ran upper 69k and one round came in at 70,690!
See the updated sheet....
What I marked in blue where the most accurate loads. Keep in mind and don't go saying this or that bullet is better than the other. The difference in accuracy was at times only .050"! A change in a powder charge of say .2gr or changing the seating depth on the bullet can make all the difference. No load tuning was being done.
Notice how a 1gr powder charge increase with the H4831sc and the 190ATIPs bumped the pressure 5k psi.
Later, Frank