The 270, 270 WSM and 7MM yes are similar. But the others I mentioned are not. Sure a 270 or 30,06 will kill and N. American game. But the newer heavy for caliber cartridges do it better. Sure hit the main vital and your good. But I have shot several elk and hit a lung and heart and tracked them for a mile only to have die of internal bleeding. That's fine. I now like to hit them shoulders with a vital to anchor them. For me me I have found it more successful. Much like a bear, you have to break them down or they suck up bullets. I have yet to have any elk take a step after hit in both shoulders with my .30 Nosler. Like getting hit by a cement truck. All died on the spot. Many may disagree with my theory.
Like trying to pull your trailer with a an SUV. It works but why when truck does the job better.
Besides, what fun is one gun. Most hunters have multiple pairs of boots. Hiking, insulated, non -insulated, snow boots, climbing, tall ones, shot ones. Why? they all serve a specific use. Don't even get me started on skis.
