Some shooting ranges will post signs stating that you can't shoot steel or aluminum cartridges there. However, this is usually because they get $ for recycling the spent bra$$. Some signs may threaten your ejection from the range, so be careful!
I have shot some Blazer aluminum with no problems. I have read that brass puts less wear and tear on the gun than steel, but reportedly only after heavy use. It looks like another use for "moderation," but that's just my novice and humble opinion.
Cabellas has some Russian ammo on their website for Cheap. A friend says these are steel casings and that can cause damage to auto handguns. Comments?