Does anyone have a recommendation for a ram load using 142 MK and Hodgdon H4831 powder?

I am using IMR 4831 which should be faster than H4831. I am using 42grains wiht a 210m primer and getting 2800fps in a 26" barrel with 139gr Lapuas. This is not max pressure but is slightly compressed because the reamer was designed to throat 139-140 bullets to short action mag length. I would start at 40 grains of H4831 and work up from there watching for pressure.

I am using 46.0 H4831 SC with the 139 Lapua, Remington brass, Fed primer. This is the Hodgdon manual MAX load. It is compressed. It is accurate. I've not yet chronographed it. It definitely takes rams. I'm using a benchrest action. Start lower and WORK UP CAREFULLY.

Thanks gents