I like the Creedmoor just fine and use one for M-S. I have built rifles in 6.5x47, 6.5 Creedmoor, 260 Rem, 6.5x55, 6.5x57. 256 Newton, 6.5/06, 6.5/284, 6.5 Rem Mag, and 264 Win. It's all just brass. The brass is a powder holder and a gasket. Capacity makes a difference to powder choice but case shape means little. GD