The M1891, 91/30, M38, M91/56, M44, and all the Finnish variants all fire the 7.62 x 54mm Rimmed cartridge. Usually known as 7.62x54R, or 7.62 Russian.
The only Mosin Nagant rifles which fire a different cartridge are the M1891 rifles captured by the Austro-Hungarian Empire during the First World War. These were converted to fire the 7.92x57 cartridge, and are extremely rare.
7.62x54R
7.62x54R
You probably mean the AK-47. But the Ak-47 was not a sub-machine gun, it is an assault rifle. SMG's shoot pistol rounds such as 9x19mm Luger. Assault rifles fire scaled down versions of full power rifle rounds. The AK-47 for example shoots 7.62x39mm which is a scaled down version of the Russian 7.62x54mm rifle round used in the Mosin Nagant rifle.
None: You may buy 7.62x54R ammunition in the US but it is not made in the US. Try Midway: http://www.midwayusa.com/viewproduct/?productnumber=580234 or another supply house. Ed
The Mausers rifles, such as the Kar98K, fire this round.
, This is a very unsafe practice. While there are adapters made which allow one to fire pistol .32 caliber ammunition singly through the Mosin-Nagant, there is no rifle cartridge which will interchange with the 7.62x54R. Please do not try it. Josh Smith Smith-Sights.com
Fire one round and adjust sites to that impact
Weapons Russian infantry used: Rifles: Mosin Nagant- a powerful bolt action rifle it was commonly used by soldiers in the early stages of World War 2 but then it was modified for use as a sniper rifle it was also used in World War 1. SVT 40- a semi automatic rifle self loading rifle which later replaced the Mosin Nagant. PPSH-41- a submachine gun which either had a box or drum magazine though this gun lacked accuracy it had a very high rate of fire. DP- An LMG recognized by the disk shaped magazine that sits on top which held 50 rounds.
Fire one round, note strike, adjust sight to that point, fire again, repeat.
Both fire the same diameter projectile.
No, a .30 caliber round cannot safely fire in a .30 Carbine rifle. The .30 Carbine cartridge is a specific round designed for that rifle, while other .30 caliber rounds (like .30-06 or .308 Winchester) have different dimensions and pressure characteristics. Attempting to fire an incompatible round can lead to dangerous malfunctions or damage to the firearm. Always use the correct ammunition specified for your firearm.
A .222 is a .22 cal center fire weapon at fires a .222 round