Dented/imprinted brass

[rucker]

I just tumbled my first batch of brass (.45) and noticed that there is a a dent/imprint about 2-3mm long on every case parallel to the case mouth. It isn't enough to deform the case so I wouldn't think it is a problem but was wondering if that is normal. The cases are from WWB shot out of my Springfield XD. I couldn't get a picture to come out but maybe you know what I am talking about. Is that anything to worry about?

[Einthoven's Triangle]

Hitting the ejection port will do that to cases. Load them just fine!

[pastorpaul]

could it be from the next round loaded into the mag, meaning from the base rim being pressed onto the top of the previously loaded round?

[BlackEagl]

I get a ding on just about every round I shoot out of my .45 from the brass hitting a corner on the ejection port.. I'm gonna need to take the gun in and get the ejection port ground down a bit..