I've always had the best results off a bipod no rear bag I use my left hand palm down under the buttstock, I use solid leg bipod and lock the legs to a 45*forward position instead of straight down
on the bench I do the same but bipod legs straight down left hand palm down under buttstock or mono pod with left hand on monopod for adjustments
on the bench I do the same but bipod legs straight down left hand palm down under buttstock or mono pod with left hand on monopod for adjustments