I got 3 gallons of .40 S&W range brass in a 3 way trade - appx 3500 rounds or so - and in the midst of my processing - came across a few great examples of the glock smile - For those of you who haven't seen this before - the glock Generation 3 and before .40 S&W had a case support problem which caused a particular case bulge. See the attachments. These go to my collection of brass failure examples.