You will wear out the gun before any appreciable damage arises from steel cases. Any extractor or bolt damage that comes about from steel happens long before normal replacement of those parts happens anyway.
Most firearms see extractor ejector replacement at 20-30000 rounds or less. There is plenty of evidence that steel has no real effect on those parts.
The only negatives of steel ammo is increased ammounts of carbon in the chamber due to steel not able to seal the chamber as well as brass does. And its not easily reloadable altho it can be done.
"Gun control: The theory that a woman found dead in an alley, raped and strangled with her panty hose, is somehow morally superior to a woman explaining to police how her attacker got that fatal bullet wound." — L. Neil Smith
The problem with being stupid is you cannot simply decide to stop doing dumb things...
"I crapped my pants to avoid the draft!!" -Ted Nugent
Last edited by JonM; 11-21-2012 at 03:53 PM.