Frank, your statement "loaded to SAAMI standards", what pressures are you talking about ?
The present 12 ga 2 3/4" standard is 13,000 psi maximum, up from the previous of 10,500, presumably to cycle gas operated autos. Combine that with a SAAMI allowable two coefficients of error of 7 1/2 percent each, and a SAAMI allowable load in excess of Parker proof loads could result, and certainly in excess of Parker maximum operational loads.
The old STS 1 1/8 3 dre loads used to run about 9500 if I remember correctly. Are these different?
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