I do shoot steel case ammunition in some rifles.
I do not shoot steel case ammunition in any AR15/M16 type rifle period.
Don't shoot it in a Mini 14, a Reminton 742/7400 or a Browning either.
I do make pretty good money every single year removing stuck and broken steel cases from the chambers of AR15 rifles and Mini 14s and that includes Wolf, Barnaul, and god only knows what else people are coming up with.
Don't buy a $1000.00 rifle if you aren't willing to feed it quality ammunition.
At the very least take the time to learn the quirks of reloading for a semi auto rifle and practice the hobby if you wish to shoot for less.
That or prepare to pay me, or some other gunsmith, good money to get the case out of your chamber.
It will happen to you eventually, I can almost guarantee it.
Oh yeah, Saiga and Bulgarian AK sporters and the few Chinese 5.56 AKs that actually work shoot steel case blaster ammo just fine.
We sell loads of the stuff to guys who own these rifles and not one, ever has experienced a broken or stuck case.
If you really want to shoot cheap I recommend the Saiga.