been loadin 410 for years n years,,,, its the fed hulls i hate them plus are yu usein the ones thet have the cardboard cap when they are new? they really suck, use AA hulls , and rem sts, they are yur only hope , , nough said i wont go into all the years of blunders, i had two boys shootin 410 at one time, for a couple of years they one went thru 1000 rounds one summer by hinself