PULLEEEEZ, somebody has to have the answer to this question (which is what most of us just want to know):

Shells at what PSI (service pressure) was it originally designed to shoot?
20' gun marked 1 oz
20' gun marked 1 1/8 oz
60' gun marked 3 TON
90' gun marked 850 BAR
90' gun marked 900 BAR

Last edited by revdocdrew; 04/01/07 09:43 AM.