I use 1 7/8 oz F, 31.5 bluedot, cci 209m, rem rp12 wad, 24 grs #47 buffer, .030 card, rem highbrass, fold crimp.
For 1 5/8 its 35.5 grs BD going 1250.
For 1 3/8 its 39.5 grs BD going 1330.
This is Lyman data and knocks the crud out of them. I've flipped a few over at 50+. Patterns great with an 11-87 and wad stripper type choke.