Complete upper question.....

[Christopher67]

they are the .136 bolt. No saami specs on the bolt. But the standard for AA and really any saami spec chamber will be .136 bolt. But the chamber is not saami. Its the grendel 2 chamber which does away with the compound throat. Some reports say that with factory ammo the Grendel 2 chambers don't get nearly as much velocity. On the other hand many say that with the grendel 2 chamber and loading out further allowing more speed in handloads.

I thought i read that the Type II chamber is made up & its either SAAMI spec or its not, someone correct me IF im wrong.