Originally designed for the bolt-action Mosin–Nagant rifle, it was used during the late tsarist era and throughout the Soviet period to the present day.
The name is sometimes confused with the "7.62 Soviet" round, which refers to the rimless 7.62×39mm intermediate cartridge used in the SKS and AK-based (AK-47, RPK) rifles and light machine gun.
[citation needed] The 7.62×54mmR originally had a 13.7 g (210 grain) "jager" round-nosed full metal jacket (FMJ) bullet.
It used match-grade extruded powder instead of the coarser ball propellant and had a 9.8 g (151.2 gr) boat-tailed FMJ jacketed projectile with an air pocket, a steel core and a lead knocker in the base for maximum terminal effect.
Produced by "Factory 188" (Novosibirsk Low Voltage Equipment Plant), cartridges are only head-stamped with the number "188" and the year of manufacture.
The individual paper packets, hermetically sealed metal 'spam' cans, and wooden shipping crates were all distinctly marked Снайперская (Snaiperskaya, the adjective form of "sniper").
[citation needed] As hard body armor saw increasing use in militaries, the 7N1 was replaced in 1999 by the 7N14 special load developed for the SVD.
(Commission Internationale Permanente pour l'Epreuve des Armes à Feu Portatives) rulings the 7.62×54mmR can handle up to 390.00 MPa (56,565 psi) Pmax piezo pressure.
However, a rimmed case such as the one used in the 7.62×54mmR cartridge can complicate smooth feeding within box magazines, but they are by no means unreliable.
The 7.62×54mmR can offer very good penetrating ability due to a fast twist rate that enables it to fire long, heavy bullets with a high sectional density.
While the only official nomenclature for the cartridge is 7.62×54R ("R" standing for "rimmed"), some shooters in the U.S. have confused the "R" as an abbreviation for "Russian" due to the round's origin.