My most accurate .357 loads with 158g JHP bullets use 10.5g of Blue Dot. It is a mid-power load that I use for Silhouette competition. It is pleasent to shoot, as opposed to full out magnum loads like 14.5g of 2400 or 15.7g of H110. Off bags, my GP100 will shoot one half inch groups at 25 yards with this load.