The 6x47 has the same issues as the 6 creed. It's not an efficient design and there is too much case capacity using the go to powders. You can run it hot but it's harder to find a load it likes and you will be burning up barrels trying to find something it likes.
That's why everyone is shooting BR class cases and the GT. More efficient design, load development is non existent and you preserve barrel life for shooting when it matters. Unless you need screaming velocity ( 6xc) most people are way better off with a BR pushing a 105/109 at 28-2900 fps. Soft shooting, hard to get one to shoot bad ( using good componets) and is a winning combination in multiple shooting sports. It's easy mode. Let's you spend time and money focusing on other shit that matters.
The numbers don't lie. Run a 22br with the best 22 bullet vs a 6.5cm with the best 6.5 bullet. The difference in first round hit percentage from about 800 on out is substantial. Any change in wind or conditions will show this even more.
Guys like to waste money and burn up barrels for no reason I guess. Or their fundamentals are so bad they can't shoot a 6.5cm. You are already seeing top shooters move back to 6.5 and .25 cal for a reason. They don't like leaving points on the table.