I've never had the first problem with aluminum cased CCI Blazer Ammo.
I've shot several, several thousand rounds mostly in .9mm, some in .45ACP, .38 and .357 magnum.
It's good stuff as far as I'm concerned, I think Natchez Shooter's Supply has it for $4.99 per box of 50 (.9mm 115 gr. fmj) now.
I understand that some ranges won't allow it. They don't want the aluminum mixed with the brass they pick up.
Better check with your range before you buy.
http://www.natchezss.com
bd