It is a bottlenecked centerfire automatic pistol cartridge. The original Luger pistol was chambered in this caliber, and later in the 9mm Parabellum catridge. The link below will take you to a short article on the cartridge and a photo.
Usually 9mm. However some earlier Lugers were chambered for the 30 caliber Luger.
They were originally made in 7.65mm Luger (.30 Luger) but many were rebarreled to 9mm Parabellum (9mm Luger). Have a gunsmith check it.
Yes. If it is a 9mm caliber Luger, The 9mm Parabellum (also called 9x19 and 9mm Luger) will be available at most guns and ammo dealers. The .30 caliber Luger cartridge is also available, but not everyone stocks it.
the German did have 30 cal. luger pistols in WW2
German Luger pistols before 1902 used a proprietary 7.65mm bottleneck cartridge, sometimes referred to as .30 Luger in US. After 1902 Lugers used the 9mm round, also commonly known as 9mm Para (Parabellum) and 9mm Luger.
The .30 caliber Luger cartridge goes by several names which makes searching for it somewhat confusing. Originally it was named 7.65 Luger Winchester markets it under the name .30 Luger with a 93 grain bullet. Sako of Finland also markets the round with a 92 grain bullet. While not usually available in a WalMart one can find the round in a larger dedicated gunshop in the United States.
22 cal......................
You should be able to find .32 ammo just about anywhere that sells ammo. if you are referring to a '30 cal. luger' then you can't used a 32 cal. shell. Lugers was made only in the 30 cal. luger (which has a bottle neck) and the 9mm cal. which has a straight brass case.................... this ammo can also be found in a sporting store......................
luger were made to fire a 9mm cartridge or the 30 luger cartridge. a 9mm cartridge will not chamber in a 30 cal luger pistol............
50 on up depending on EXACTLY what you have
9x19mm, also known as 9mm Parabellum or 9mm Luger.
The odds are that a 1918 Luger would be in 9x19mm Parabellum. However, there exists an extremely slight possibility of you encountering a former Swiss military pistol chambered in the 7.65x21 (also known as 7.65 Luger, 7.65 Parabellum, and .30 Luger). While the German military replaced the 7.62x21 cartridge in 1908 with the 9x19 cartridge, it remained the standard calibre for Swiss military pistols until the 1940s.