NitroX,

Either should work. I know of a couple of 9.3 x 74R's (NOT Tikka's though)
that the owners have regulated with both 286 and 320gn.

286gns will do anything you want in this country.
The 320gn just does it with a bit more authority - heavier weight bullet,
more penetration, heavier hitting.

"I lean towards a 286 gr as I want to match a FMJ to the soft point as well."

The 320gn RN has both a Soft Nose and a solid ?

Personally, I would load up 286 gns and get the gun regulating perfectly
with both SN and Solids to the same POI and then
try to get 320gn working (regulating).

If you need load data, send me an email - and I'll get the loads of the 2 people
who have them.

Hope this helps.

500 Nitro