Whats The Difference ?

[jrbsr]

Whats the differnce between
7.62 and 7.63x25 and 7.62x39 and 7.62x54R ?
Is the cases different sizes ?

Wich one will fit in a 308 ?

Thank You

[popeye]

Yes the case is the difference. The number after the "x" represents case length in mm. 7.62x54R, Caliber 7.62mm x case 54mm Length "R"stands for a rimmed cartridge.

None of these are interchangable with a 308 Win.

[Soilarch]

7.62X51mm (might say NATO as well) is the .308. That 7.62X54R behaves very much like the .308 but is found mostly in those old war-mausers. You looking at guns or which ammo to buy?...or just curious

[eldeguello]

ORIGINAL: Soilarch

7.62X51mm (might say NATO as well) is the .308. That 7.62X54R behaves very much like the .308 but is found mostly in those old war-mausers. You looking at guns or which ammo to buy?...or just curious

The 7.62X54R (sometimes referred to as the 7.62X53R) is the Czarist Imperial Russian cartridge used in the Moisin-Nagant rifles adopted by Russia in 1891. This cartridge is also used in a number of other Russian arms, including several different machine guns, the Dragunov sniper rifle, and a couple of early WWII semi-auto Soviet rifles. The 7.62X54 R cartridge is a RIMMED round, and has NEVER been used in any MAUSER!!

Then there's the 7.65 X53mm Belgian or Argentine Mauser (rimless) round originally used in the early Belgian Mauser, and later by a bunch of countries, including Turkey and several Latin American nations such as Argentina in their M1891 and M1909 Mausers.

The little 7.62X39mm is another Russian cartridge, but it is a rimless desgn originating during WWII, with a very short case intended for semi-autos like the SKS and the Kalashnikov family of assault rifles and light machine guns.

The 7.62 (or 7.63) X25 round is the Soviet .30 caliber rimless pistol cartridge used in the Tokarev semi-auto of the 1930's thru WWII. It is almost identical to the German 7.63mm Mauser pistol cartridge used in the Mauser "broomhandle" semi-and full-auto pistols. Somesuspect that the Russians just copied this round from the Germans, because during WWI and the Russian civil war of the 1920's, the Russians used a lot of the Mauser pistols ("Bolo Mausers" - "Bolo" derivingfrom "Bolshevic".)

Generally, the "7.62 - 7.65mm European rounds are really ".303's", because they use .310"-.313" bullets like those used in the .303 British cartridge. However, the 7.62 NATO (AKA .308 Winchester), as we all know, is a true .30 caliber, using .308" bullets!