stove pipes in small framed, modereate powered handguns can often be traced to "limp wristing". More of the small, lightweight .380 chambered pistols have been returned to the factories due to this, and returned to the owners with little explaination other than "cleaned and live fire tested-good" ... only to have the owner experience the same issue and sell/trade the gun and spread the word it was a POS.
Not saying that limp wristing is the case here, and I'm certainly not going to bat for aluminum cased ammo (definately not steel cased commie crap), but it could possibly be something to check. First, I would shoot at least a couple hundred rounds of brass.....and CCI does make "lower cost" brass ammo as well as the aluminum. If the brass works, you've found the initial culprit. If another experienced shooter can shoot the CCI aluminum with no issues, again, problem isolated. I would start with another shooter with the aluminum, then try the brass. If you still experience a problem with brass, have the other shooter give it a try.
It doesn't matter how experienced a shooter you are with full sized handguns, if you haven't had a good bit of experience with the micro pistols you can still experience problems. Most of us that jumped on the micro .380's 10+ years ago had to "adjust".
Lastly, if the brass works out, I'd bet that after 300-400 rounds of decent performance with brass, the CCI aluminum will magically work too
surv