The .308 was worked up by U.S. Army Ordnance in the early 1950s for shooting people, and it has excelled at that and every other use to which it has been put. It was an immediate commercial success and perpetually rides near the top of the best-selling-cartridge lists.
The 6.5 CM was designed by Hornady for long-range target shooting, reached the market in 2007, and spent its first few years in comparative obscurity. It was made for a bullet diameter that American shooters had previously treated with massive indifference, and named for a long-vanished rifle range that hardly anyone remembers, or spells correctly.
But it was the right round at the right time. It arrived when long-range madness had arrived in its full fury, and it was very, very good at long range. Then the hunters caught on, and today there is hardly a bolt-action rifle that’s not chambered for the 6.5 CM.
Both cartridges are extremely accurate. Both are low-recoiling, “mild” rounds. Both are fine as wine in the summertime for hunting. Both are hugely popular. Is one better than the other? Let us compare.
Read more at Field & Stream.