Most people who repeat everything they hear--always negative--about "steel-cased" ammo seldom see any problem with their own eyes, if at all.
"They say..., and my German Police and CheckSlobokian Police guns might have Pieces just Brake OFF!".
Many people still believe that the earth is flat ("they can prove it"), and also that "They out here sayin' that nobody walked on tha' moon".
Gracious! Even my 9mm guns have dirty actions after shooting fifty rounds. That US-made ammo, my buddies tell me, is Nasty stuff!
And after Tree Hunnit rounds with no cleaning, that weird, US-made powder requires some extra cleaning in my nice Walther P99 AS (means Automatik Special). What's the Deal??!!