I have nothing in particular against the stuff, indeed my carbine shoots its smallest groups using Blazer aluminum cased 180 grain ammo. The issue here is that when using this stuff in a carbine, the pressures are higher. As an example I recorded 1400 fps from the above mentioned Blazer, a boost of 250-300 fps over what I'd see from my pistol.
The extra velocity means extra strain on the cases and for 2 of the 15 I shot last weekend, it was a bit too much.
I was recording all my muzzle velocities but didn't think to note which shots were the ones on the blown out cases. Checking the numbers however I see that all the velocities were very consistent around 1403 fps except for two at 1382 and 1375. So not much loss but noticeable if you're looking.