All manufacturers quality control by random sampling. Pressure and patterning are key tests. They also know their cartridge pressures. Sales people may not know but the engineers and QC people do.
Lots of cartridges from the major manufacturers fall below Parker max service loads. It’s when loads are heavy , the 1 1/4 and 3 1/4 dre stuff, that pressures exceed max. No Black Cloud Prairie Storm hyper magnum stuff, that you don’t want . I don’t think there is a 12ga 1oz, 2 3/4 Dre or under 1200 FPS load that isn’t acceptable . If there is, I haven’t seen it.
You want the stuff that doesn’t cycle a recoil driven auto well.
|
Threaded Mode