Con,
Checking my data, I find I got about 50 fps more velocity using 450 grain bullets with the same weight of AA2230 as I got with H4895. If AA2230 is not available in Australia, I would try working up loads a grain at a time using H4895. As a "guesstimate," I would suspect you could get at least 2100 fps and maybe 2150 fps with H4895 and 500 grain bullets. You might even get more. I got 2200 with AA2230 and 500 grain bullets.
