I' m going on my first elk trip to the Rockies next year. I have the option of taking my 7mm Rem. Mag. loaded with 160 gr. Barnes XLC X-Bullets, or using my brother' s .300 Ultra Mag.

I' ll be able to practice as much as I want with either gun, so familiarity won' t be a problem. What should I do? Should I start looking for a good handload for the .300??