02-26-2013, 07:26 PM
Tony Williams Wrote:The 6.45x48 used a case with the same overall diameter as the 7.62x51 so, yes, it was in a similar size class to the 6.5x47 Lapua, 6.5mm Creedmore and .260 Rem. Which is to say, much bigger than the Grendel. Bullet weight was only 97 grains fired at 2,950 fps.
I think that I have read your comments on places like Tank.net and quarry.nildram.co.uk This is why I compared the 6.5x48 to the .260 Rem rather than to the Grendel.
One other question. Is the SIG550/556 design scalable so that the rifle could be converted to a larger caliber? That was one feature that made the Rem ACR so interesting. In your opinion, is there a good platform out there or are we stuck with the M16/M4?