Hi,
I emailed Geoff McDonald of Woodleigh Bullets in January about the same question. Here is what he emailed: "For both SN and PP 350gr bullets use Federal 215 primer, 68-72 grains of Hodgdon H4350 for 2300-2380 fps or 73 grains H4831SC or IMR 4831 for 2250 fps. For FMJ reduce SN load by 5% and work up."
I hope this helps.
Ron