Conversely , no commercialized rimfire has ever been loaded above about 40,000 psi ( 280,000 kPa ) maximum chamber pressure .
Modern centerfire cartridges are often loaded to about 65,000 psi ( 450,000 kPa ) maximum chamber pressure .
No commercialized rimfire has ever been loaded above about 40,000 psi ( 280,000 kPa ) maximum chamber pressure .
Modern centerfire cartridges are often loaded to about 65,000 psi ( 450,000 kPa ) maximum chamber pressure .