... which is assuming you're evaluating Typical primers to Standard primers or Magnum primers to Magnum primers ... not Magnum primers to plain primers. There is an exception with handgun loads that use large pistol primers ... WLPs create about fifteen% extra flash than other manufacturers of normal large pistol https://federalbenchrestprimers80123.tusblogos.com/31893554/the-2-minute-rule-for-federal-large-rifle-magnum-match-primers