I use range pick up brass. For matches, everything must check OK in my Hundo. Anything that doesn't pass goes into a box marked practice only. Most of the practice ammo runs fine in my Glocks, CZ's, 1911's etc. Once in a while a round won't completely chamber and I just throw it away. Sometimes a round like you have pictured is a bad crimp. I will put them into the hundo upside down to check. I use a Lee sizing die and a Dillon crimp die. I used to use a Lee factory crimp die but quit using it for some reason that I don't remember.