Well, if you can still find them, the 300 gr. nosler partition can be loaded to the same specs as the 300 gr. rem, and should shoot to the same poi. Here is a load I have used in the past, and you can literally shoot any 300 gr. bullet, in it without fear of pressure spikes. The load is below max.

300 gr. bullet[nosler, rem, hornady, sierra, etc.]
WW cases
210 Fed. primers
51 gr. H4198
Lee factory crimp

Avg. velocity: 1950 fps out of my 18 1/2" Marlin Guide Gun

I used the Horn. FNHP for practice, and the nosler for hunting. The penetration on the nosler is awesome! I have used that load to take hogs, black bear, and 7 head of plains game in RSA last summer. Have only recovered 4 bullets from all the animals. )ne from a Kudu, and three from a Zebra. The rest were pass throughs.

maddog