honestly I feel like the clean/dirty bit is almost all too subjective to be worth a shit. This ammo is so clean/this ammo is so dirty etc. Different pistols, barrel lengths, shooting & cleaning habits, etc and although most will claim they know the exact number of rounds they fired I dont think that many do. Im sure 100 people will show their notebook to prove me wrong but I still stand by what I said. Not to mention if person A and B have the same pistol and fire 100 rounds person A will clean his pistol better than person B and then person B would say the ammo is dirtier from round two because he did a shittier job cleaning the first time. After all each cleaning session leads into the next range session unless the pistol is brand new. IMO no malfs and consistent ejection are Waaay more important that this brand was dirtier than this brand. It's a Joke IMO