Yes- and if you read the owner's manual, it tells you that in the ammunition section. If you do not have the owner's manual, you can download it from the S&W website.
It is the same cartridge
No. Only use what is stamped on the barrel.
The standard 5.56 mm cartridge is centerfire. There IS an adaptor to permit the use of .22 LR rimfire ammo for training.
11.5 mm bullet diameter
115 and 124 among others
6.35 mm is equivalent to 25 ACP
20 mm cannons.
The manual does not say either way, but most modern 9 mm pistols can handle +P ammo unless it is specifically prohibited. Best thing to do is to email the company.
9 mm + 160 mm + 200 mm + 5 mm + 48 mm + 1.8 mm = 423.8 mm = 42.38 cm
I have had good success with Federal rifle ammo.
9mm Luger.
if you mean 7.35 carcano look on gunbroker there is a gentleman nambu1 who reloads for it and has very resonable prices