IMR 4350... Remington typically uses extrudes of the old DuPont genera... you'll find what walks, talks, quacks, and smells like IMR 4350 in a lot of their factory ammo.
CHECK YOUR LOAD DATA MANUALS (not yelling at you, just clarifying for the self appointed mall cops trolling around)...
...and find starting and max loads for IMR 4350... and go from there.
Nosler's max for their 150's--and 155's--is 59 grains of IMR 4350.
Hodgdon isn't as generous, but if you move in small increments (.4 grains or so), watching for pressure signs, you'll have no trouble.
59 grains of IMR 4350, in Winchester and similar brass, with typical 150 grain bullets in the 30-06 is a tried and true OCW load recipe. And the Rem Core-lokts are pretty typical in jacket hardness, bearing surface, et al.
Dan