"The 7.62×54mmR originally had a 13.7 g (210 grain) "Jager" round-nosed full metal jacket (FMJ) bullet. Due to experiences in the Russo-Japanese War, the projectile was replaced in 1908 by the 9.5 grams (147 gr) Лёхая Пуля (Lyokhkaya pulya > "Light Bullet") spitzer bullet, whose basic design has remained to the present. "
-From wikipedia
I'm pretty sure all surplus x54mmR is 147gr