each gun is differant and will shoot differant ammo better than others.the 30-03win i used to own really did not shoot the best groups with any particular bullet.
now since i hunted in maine where the big boys roam. i opted for the 170gr. because of that. ammo is cheap $8.99 - $33.99.( partition's ).i would buy a box of each of the same gran size and see what your gun likes. the best i found my old 30-30win to like was federal classic HI-SHOK's 170gr.
150yds would be max unless you use a scope and sight it in at 3" high at 100yds. but it should be kept IMHO with iron sights or peep sights.