With that load you'll need a gas check. for chexless shooting you want to limit your vel. to around 22LR speeds . for best results say 900-1200 fps. Not to impressive your probably thinking but these sub loads can be just plain fun to shoot for extended sessions . My favorite Chexless sub load is for my 03A3 using a chexless Lee 155 and 6.0 grs of Bullseye just a hoot to ring the 12 " 200 yd gong time after time . Heres at 100 yds
Tim