I don't have a clue; according to several women in my life, I never did. But anyway, does this show up with factory ammo? I ask because that seems like a light load, and 1911s don't necessarily like light loads.I shot 6 rounds today of .45 in my Ruger commander and checked the ejected rounds. I noticed that at the mouth of the casing, there is an indentation as if the round was stepped on. It also had some scuffing or scratch marks on it. Can anyone give me a clue on what is causing this. I am using 4.5 gr. of Bullseye, large pistol Winchester primers, Berry plated bullets (.452) and a COAL of 1.250. The rounds are very lightly crimped. Any help will be appreciated.