How long are the forcing cones Jeffery? They were originally likely 1/2" to 5/8".
If longer, when they were lengthening the chamber may have been lengthened another 3/8"; from 2 5/8".
I have a L.C. Smith with long cones and non-original 3 1/4" chambers still with end-of-the-chamber WT of .112" and .118".
I don't believe a 2 frame Parker would have end-of-the-chamber WT of .096". But assuming the barrels are Parker Special Steel, I would be comfortable using 1 1/8 oz. at 1200 fps target loads in the gun.
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