It is because each time a bit of brass is fired and re-sized, it might “stretch-out” or lengthen. Employing a case trimmer might get it back again to teh appropriate duration. We’ve compiled a listing of the Best Case Trimmers for you. Neither of these are concerns for handgun cartridges. https://raymondxmvbg.blog2news.com/30950142/the-5-second-trick-for-reloading-ammunition