Howa mini-action in grendel to be released in mid-2016

[BluntForceTrauma]

We don't recommend going outside of SAAMI spec for any cartridge.

I hope that means you're planning to use the 6.5 Grendel SAAMI chamber. Other custom chambers might be tuned to this or that bullet for a specific performance node, but the 6.5 Grendel SAAMI chamber was designed to shoot well the very wide variety of 6.5mm bullets at moderate 6.5 Grendel velocities.

And, Drift, I'd guess that the Howa MA shares the same bolt lugs as its bigger brethren. Only the bolt body length is shortened. Thus, it should have at least the same strength as their short actions in the .308-case family. <WINK!> (Eh, Matt, you didn't see that. . . .)

P.S. The maximum average operating pressure for the 6.5 Grendel of about 50,000 psi was specifically set for conservative margins of safety for the bolt-life requirements of a fleet of rack-grade AR15s operating from the extremes of the Siberian arctic to the Middle East. If you have a stronger bolt, the cases can certainly handle more pressure.