Thread: Beginner question: Using pistol projectile for 7.62x54r?

Jump shouldn't be an issue unless the freebore is so baggy that it allows the projectile to significantly rotate. Even on a Mosin with a drainpipe for a barrel, I find that unlikely.

But over 40 grains of powder behind such a light pistol bullet... And those Mosins have a 1:9.5" twist too... Decent chance the little things are disintegrating after exiting the muzzle.

This is probably a good candidate for "the load" which is a small amount of Red Dot powder (13gr if memory serves). Fairly well known thing for making gallery loads for milsurp rifles in anything 308 or larger using a cast bullet.