CONSIDERATIONS TO KNOW ABOUT .256 WINCHESTER MAGNUM REVOLVER AMMUNITION

Can another person clarify "+P" when their conventional pressure loads tend to be more effective? It should be a typo or something, ideal?I run 147gr in both of those my TNW PCC (when It really is Operating) and really feel at ease with either Underwood +P JHP or Winchester Ranger-T. If I find my MR920 "prefers" one particular in excess of another