DETAILS, FICTION AND CFE PISTOL POWDER

In .forty/10mm I have some 200gr nosler and 230gr bullets from xtreme Besides 140gr barnes xtac and 165gr fmj. Ought to study much more to understand how a heaver grain bullets respond to slower burning powder.CFE Pistol is medium to low flash.  But medium to reduced is quite a bit greater than small, as it is possible to begin to see the action t