You will have to define what you want to use the weapon for. Loads vary from 90 - 147 grain.
83 Cm
Glock
Glock is a brand. 9mm is a caliber size. So, there is no difference between a 9mm glock and a 9mm of another brand as far as caliber size.
Yes, a Glock 19 9mm magazine can be used on a Glock 23 since both firearms are chambered in 9mm.
The .22 bullet is smaller than the 9mm in size, (about 6mm) and is lighter in weight.
Well there are many different BRANDS of ammuntion that you can buy for a glock. but obviously you will need 9mm bullets for a 9mm gun.
Yes
The Glock 17 (full-size 9mm) holds 17 rounds in a factory magazine. The Glock 19 (compact 9mm) holds 15 rounds in a factory magazine. The Glock 26 (teeny-tiny 9mm) holds 10 rounds in a factory magazine. The Glock 17L/34 (competition) also holds 17 rounds.
The Glock 19 is the 9mm with the compact (midsized) frame.
The common 9mm cartridge is known by many names. All of the following 9mm's are one and the same: 9x19mm, 9mm Nato, 9mm Luger, 9mm Parabellum. There are no 9mm cartridges specific to Glock or Smith & Wesson.
A Glock 19 is chambered in 9mm. 9mm is one of the most common/popular pistol rounds.
A Glock 19 is a pistol. The Glock 19 is their compact, 9mm, 15 round, pistol.