Max rounds through a barrel

[lrgrendel]

Since the Grendel operates at lower pressures, the throat, and consequently the barrel life is exceptional, easily out-lasting the .308 Winchester. I think Les Baer has claimed barrels lasting well past 20,000rds for accuracy life.

What do you mean by max pressure and velocities?

I use 30 grains of AA 2520 which is at or slightly above "book" value depending on which source you use.
For my given equipment, components and local conditions I have determined I am at the safest highest velocity hence also my max pressure.