1. The two I mentioned, was told they were handgun cartriges.

2. I agree with Oldelk, that 20" and under I consider carbines.
Some people on the forum believe they do and some pepole
do not. When someone shows me where it is stated that a
carbine has a specific barrel lenght, then they might convince
me. The Berreta B59 is considerd a carbine and it's not a light
rifle with 19 1/2".It was also stated that a carbine is a light
rifle with a short barrel. M1 Garand is 24" barrel, but the M1 "TANKER"
Garand Carbine is 18".
3. That's why I posted the Picture.