Broke another bolt.... your thoughts??

[centerfire]

You think the chamber/throat was incorrect and that’s what was causing me to break bolt heads? Could you explain why or how that would cause the bolt head to break? I don’t follow.

Short throat is increasing pressure. You have pressure signs with a variety of similar ammunition exhibiting similar velocities.

Most suppressor manufacturers have done strain gauge testing for chamber pressure, at this point, and the pressure change from the suppressor is negligible.