Quote Originally Posted by pinzgauer View Post
Did some reading... maxx is slightly rebated and claims the same case capacity as spc and grendel.

So bigger case head/ diameter than 5.56 but less than grendel/spc. So can run at 54-55k psi rather that 52k.

Should be interesting to watch. Some are very skeptical of usable case capacity with real world bullets at realistic OAL.
Case head diameter is .378, same as .223/5.56.