I can't chop & change between subsonic and supersonic either (Win Subsonic 42 max and Win PowerPoint 40) in a Remington model 581 bolt action.
Not only a shift in elevation but a similar shift in windage between the 2 loads. Both loads are superbly accurate.
Ended up sighting-in for Subsonics and if I need more firepower use a .223 or 12 ga.
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