Posted by Steve Arnett on February 21, 2023, 8:41 am, in reply to "12 gauge load"
John, my standard load these days is 18.5 gr. American Select, CB-0178-wad (gray replacement fo W-W 12L), W-W of Cheddite primer. This works in either W-W AA or Rem STS hulls. Pressure around 7,00, velocity 1,250, per Alliant data.