I've owned and shot several Carcanos over the years and they are adequate rifles/carbines. I had a Beretta made M38 that was a real tack driver (only dropped once in Sicily).

But there are dangerous Carcanos out there, namely those that were refurbished by the Germans in 7.92 (8mm Mauser) towards the end of the war and a few thousand that were built new at the beginning of the Africa Campaign. These are not safe to shoot, even though the ammo price is more attractive. I had an 8mm bolt I kept for a number of years to illustrate the problem - both locking lugs were deformed and the bolt handle had a crack in the base. If I recall correctly, I believe it was CAI that imported several thousand of these in the late 90's and advertised them in Shotgun news as unsafe to shoot (I think the story went they found them in a cave somewhere).

 
 
"There are three reasons to own a gun: To protect yourself and your family, to hunt dangerous and delicious animals, and to keep the King of England out of your face." — Krusty the Clown