So ummmmmm I thought I ordered brass but well...I didn't. ($240+ 1000rd count)
CCi Blazer is excellent range ammo so we're gonna find out if Spare Change (P320) and the 2 new Daggers will eat what's put on their plate. Stay tunned for the test when the new Dagger complete slide comes in (part of the BF haul)

How does the aluminum cased rounds work for you? I salvage scrap aluminum myself.
Kinda did the same thing when I bought a bunch of Blazer brass 45 acp. Small primer pockets. Useless to me for reloading. Had to separate them all out and put in a can for SHTF.
I've used aluminum cased ammo with no issues in several guns. I think you're good to go.
I shoot Blazers 9mm 115g a lot of the time in the range. I find them dependable and consistent.
I all so save the brass for reloads.