Steyr LP 50 pressure accuracy range?

At what pressure range will the Steyr LP50 retain its accuracy?  Or in other words, is there a pressure (shown on the cylinder's gauge) where accuracy begins to deminish?

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I could shoot my old LP10 down pretty low and not have shots go off call. I never shot it all the way down to the to the pressure cutoff. I've never shot more than 80 or so shots from my LP50.