Which 6.5??

[LRRPF52]

It basically makes the .264 Winchester Magnum pointless, the 6.5-06 that is.

So, what about all those comparisons of the 6.5-06 with the .264 Winchester?
One would think that the magnum case would have the edge. But a comparison of the actual chronographed velocities of factory loads and handloads, as published in various
loading manuals, reveals that the two cartridges are more alike than different.

The average velocity of nine loads for the .264 Winchester with 140-grain bullets is 3,087 fps, not all that far from the average of 3,007 fps obtained with the 6.5-06. But the 6.5-06 uses only
about 52 to 55 grains of powder to achieve these velocities, compared to about 62 to 73 grains for the .264. Stated another way, the .264 Winchester uses 26 percent more powder to
get only 2.7 percent more velocity than the 6.5-06.