John,
I would not worry about pressure in a VH. I do worry about recoil and how it might impact the old wood. In the Winchester reloading book they list this as a duplicate of factory 2 1/2 dram eq. promotional field load: WW 209 primer, 20.0 grains WSF, WAA16 wad, 1 oz shot, 1165 fps, 8400 psi.
Harry
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