The standard cartridge for all things Alaska and particularly Kodiak is the 338 Win Mag or it’s equivalent. 375 H&H or 375 Ruger are good choices as well and there is nothing wrong with the venerable 30/06. Any of those in a good all weather package would be good. For Alaska and Africa for both plains game and dangerous the 30/06 and 375 H&H are a good two gun battery. Trajectory in both are similar with similar sectional densities. Either would be a good choice. If you have both your set to hunt the world. They’re not fancy but they get the job done!So if you were going to hunt Sitka Blacktail on Kodiak Island what caliber would you choose? Considering the bears think the sound of a shot is the dinner bell.