Partitions are never a wrong choice, unless your rifle does not like them.
^^^^^THIS^^^^^ is what I've always believed Jorge, probably have more partition loads in my smokless hunting rifles than any other bullet, have had no negative issues to date.
Plus, your old 300 H&H shoots the hell outta the 220 gr Partitions with H-4831 at a fine 2750 fps, averaging less than 2" groups at 100 through the Redfield receiver peep.
I really can't think what that load wouldn't handily level either.