I think I will stop buying CCI aluminum Blazer! 5 years ago I almost blew up my semi-auto Kahr Thompson with Blazer .45 ACP.......had a "squib" and the next round bulged the barrel.

I fired the same 28-2 today, with the last few rounds of brass case 158 gr. .38 I had laying around and had no problems, no "puffs" or carbon in my face. I'm starting to think it was the ammo