If I could, your being familiar with is incorrect. There is not any this sort of thing a 'really hard' or 'smooth' primers. Mil spec primers are magnum grade and less sensitive to your firing pin strike. This is often an more mature thread, you may not receive a reaction, https://cristiannkxiy.blog-mall.com/32408993/the-ultimate-guide-to-federal-large-pistol-primers-no-150