6.5 Grendel / 6.8 SPC, 20 Years, Where Are They Now?

[two70]

I personally think any cartridge relying on .257 or .277 bullets it basically dead in the water. There’s simply not enough reason to prefer them over a mere 0.007” jump up to the .264 or .284 and the VASTLY better bullet selection in those calibers.

Think about it, if we exclude the 257 and 277, the common bullet diameters are:
.204
.224
.244
.264
.284

…Noticing a pattern yet?

Yes, I see a pattern... a superior one, especially, if one takes the liberty of adding a 1/1000th as was done with the .243.
.258
.278
.308
.338
.348
.358
.458

It's pretty clear that there is little need for the Eurotrash calibers, .264 or .284, as the all American calibers have everything covered. From .300 BO to .30-378 WM, .308 alone covers almost everything one would need to do with a rifle.