Dr. Drew:
Appreciate that insight and, your point is a valid one. Nobody can really know the definitive pressure of any commercially produced shell w/o actually measuring each variant, but....for the purposes of general use, isn't it reasonable to assume that if a box of shells is listing a general service pressure designation, you can use it in similarly chambered weapons with some degree of confidence?
My primary complaint (admittedly minor) about how shotguns and shells have been (and still are) marketed, is the seemingly-constant shifting (evolution?) of how pressures are measured and then reported. There is a bewildering range of descriptions out there for both, and risk can only be managed if all the variables are competently understood.
Again, can I reasonably compare tons per square inch proof-marks (or in this case, CIP shell ratings) to PSI tensile-strength measurements in a way that allows me to judge what a "reasonable degree" of margin would be for safe use in an older gun? That, of course, assumes that the gun in question is "sound" (i.e., within it's originally designed parameters for use.)
I'm not asking for absolution here (although..that would be nice!), I just want to know if I'm on the right track.
Last edited by Lloyd3; 03/09/16 07:31 PM.
