I use it(steel cased russian ammo) in a ton of shit from my Walther P38 to my AK and my AR. I have never had a failure to fire and its never broken an extractor. Personally I dont see the 1911 issue since the US GOVT issued steel case ammo for 1911s in ww2. Personally if you can afford a race gun you can afford high quality ammo, but as far as any combat or service arm...if it cant eat anythig you feed it, then it isnt a good combat/service arm.
Glocks eat it no problem
Steyrs eat it no problem
Walther as well and none of these are cheap guns.
Oh and Tokarevs do as well and they are basically a 1911/1903 colt knockoff.
If you want cleaner amo try Silver Bear...its not laquered but zinc plated. And I have had a shit ton of failures with whitebox Winchester ammo. Dented cases, bad primers, and loose slugs.