Bolt Action Grendel

[JASmith]

Someone remind me please, "How much pressure does the the CZ 527 tolerate?" and "How much pressure does the Grendel generate?"

adamjp has indicated that "The CZ action, or the Mini Zastava are good, but their qualities are immaterial as the brass will liquify at pressures needed to drive a 123gn Scenar at 3080fps from a little Grendel case."

So to complete the answer to your question, the targeted pressures for standard AR bolts are around 50,000 psi. This pressure level is set to assure very long and highly reliable bolt life. We have also been just told that the Grendel case, on the other hand, is designed for 58,000 psi.

The extra 8,000 psi or 16% pressure, has a significant impact on attainable muzzle velocity.