here is the link for the italian national gun catalog.Here you can find every gun.except shotguns:
made in Italy since 1975
imported in Italy since 1975
exported from Italy since 1975
According to the italian laws all these guns must be registered in this catalog and can’t be modified for example rechambering them.
You can find a lot of CIP tables for every cartridge used here
Just select the caliber (calibro) and then click over “salva una copia della scheda” to download the description for FREE.
It is a public service by police here,so there’s no problem to post this link
Hope this will be helpful