They do not list them on their website for some reason, Matt. I heard a rumor about them and called. The lady I spoke with was extremely knowledgable about their products, including the lower pressure load. I asked specific, technical questions and she answered them all.
They run about 8500 psi, and are able to do that by using fiber wads instead of plastic shotcups. I have begun pattern testing them in two guns, so far, and am getting consistent 66-70 % patterns, with very nice and even 20" cores. I would expect the plastic shot cup loads to pattern tighter, and the lady at BOSS assured me that they do. I intend to pattern test them after finishing with the lower pressure ones. I'm not worried about the 10,000 psi, that they reportedly are, in these two guns. But, I've got a few other vintage S X Ss I'd like to try for ducks and would prefer the lower pressures in them.
SRH
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