It is because every time a bit of brass is fired and re-sized, it may “extend-out” or lengthen. Utilizing a scenario trimmer might get it back to teh proper duration. We’ve compiled a listing of the Best Scenario Trimmers for you personally. Neither of they are fears for handgun cartridges. https://reloadingammunition39387.bloguetechno.com/the-best-side-of-riflescopes-65944771