I have a 44-40 six gun and a 44-40 lever gun and shoot the same bullet.the Lyman cast bullet manual only has data for pistol loads using a pistol primer. should I use a rifle primer when loading for the lever gun or just use the same pistol primer that I use in my six gun.right now im shooting 6 grains of trail boss in my six gun and shooting it in my rifle but im thinking of dropping the charge down to say 5 grains in pistol and maybe go up to 7.0 in the rifle. thoughts?