This weekend I did a quick pressure test starting at 43 grains IMR 4350, and going down by 1/2 grain increments to 39.5 grains, in Lapua brass.
Started with the 39.5 and worked my way towards the 43 grain max load. The rifle digested even the 43 grain charge with the 87 gr. hollow point bullet, with moderate fire ring expansion, no signs of cratering or flattening of the primer, so I will stop at 43 grains for max pressure.
Seated the bullet .015" off the lands as measured with the Stoney Point comparator. I used CCI standard large rifle primers. Next is the ladder test to come sometime in the next couple weeks to arrive at a final charge weight. Then, futz about with seating depth and primer choice to arrive at "the load."
IMR 4350 is a coarse extruded powder, and I wish it would meter better than it does. I generally like the performance of extruded powder, but I think I am in search of a ball powder that is suitable in this cartridge, so I can just throw charges and be content.