Re: MOssberg 930 SPX Shooting to high
To be fair, the 930 SPX was designed to be a close quarters shotgun, not a slug gun. Quoting reviews that likely didn't test fire slugs isn't lending any weight to your argument.
I haven't tried it myself, buy I have to believe that shooting value-pack rifled slugs out of an 18.5" barrel isn't going to provide much in the way of accuracy, even at 25yds. Remember, slugs are a shotgun adaptation, they're not really what the weapon was designed for. Even shotguns specifically designed as "slug guns" are in the end just a shotgun.
As far as the sights go, try using some kind of shot and see if it patterns at point of aim.
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