Charlie, I tested a RST 10 gauge load of 1 1/4 of 7 1/2's at 40 yards in a .038 choked NH and stuck the wad in the target. This may sound stupid but could it be the wad? Have you recovered any of the fired wads for examination? Just throwing some questions out there.
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"Much care is bestowed to make it what the Sportsman needs-a good gun"-Charles Parker
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