marshgrass:
The current American SAAMI standard pressure for 3-1/2" Magnum 10g is a max average pressure of 11,000 psi. This is the same Max Average pressure as in the 1925 SAAMI standards, except for some statistical methodology differences.
Your NID Magnum double will not be troubled by the pressures generated by any American shell on the market.
Regards
GKT
Texas Declaration of Independence 1836 -The Indictment against the dictatorship, Para.16:"It has demanded us to deliver up our arms, which are essential to our defence, the rightful property of freemen, and formidable only to tyrannical governments."
| 
