The .270 was the logical evolutionary improvement over the '06.
It's about perfect for the '06 case.
Better sectional density means the .270 retains velocity and energy longer.....that's more efficient.
A quality 150 grain .270 bullet will take any North American game and most game on the planet for that matter. Same goes for the .280 which is almost identical.
Loaded to equal pressures, the 30-06 will get more velocity than a .270. So, it is about a wash. Start faster or start slower and slow down slower, it is all the same in the end.
