Pistol Pacs were being designated by a “P” then the model amount of the revolver frame, then the barrel shroud form (blank) for normal, “V” for vent, “VH” for Vent HeavyAttention-grabbing concept, I maye really need to try out it someday. Just comparing The 2 guns side by aspect, it seems like the .357 barrel from a Model 15 is bigger o