08-30-2013, 09:28 AM
Quote: The primers looked good though
The Grendel has a MAP of 52K psi. At what psi would you expect to see "pressure signs" in the Grendel Primers?
Remember that same small rifle primer is used in the 5.56 which operates at 62K MAP. How does the primer know to show you signs of pressure in the Grendel before it shows you signs of pressure in the 5.56?
