SAAMI Pressure for 9mm

checkfeo · 01-08-2011, 11:31 PM

The actual pressures are identical, but the numbers are different, sort of like measuring your height in inches or meters, the same height but the numbers are different. Most times the cartridges have a higher PSI maximum than the CUP number for high pressure cartridges, but opposite for lower pressure loads.

So, you can use either number, PSI or CUP. You just have to know which one your using or talking about.

01-08-2011, 11:31 PM	#11
checkfeo User Join Date: Nov 2010 Location: Georgia Posts: 41 Thanks: 1 Thanked 20 Times in 8 Posts	The actual pressures are identical, but the numbers are different, sort of like measuring your height in inches or meters, the same height but the numbers are different. Most times the cartridges have a higher PSI maximum than the CUP number for high pressure cartridges, but opposite for lower pressure loads. So, you can use either number, PSI or CUP. You just have to know which one your using or talking about.