06-17-2023, 03:24 AM
Hook,
with my LR reformed 7.62x39, I get way high pressures if I use the same load as SR 6.5Grendel brass. at least that's been my experience. I still have a few reformed cases. Once Grendel brass became more available I quit doing all the work to reform 7.62x39 brass.
remember to consider neck turning as most cartridges' neck wall thickness increases as you reduce the diameter. if the neck wall get's too thick it can't release the bullet and pressures go up quickly.
also, I've had good luck extending all my brass reloading life via neck annealing regularly.
best of luck,
tdbru
with my LR reformed 7.62x39, I get way high pressures if I use the same load as SR 6.5Grendel brass. at least that's been my experience. I still have a few reformed cases. Once Grendel brass became more available I quit doing all the work to reform 7.62x39 brass.
remember to consider neck turning as most cartridges' neck wall thickness increases as you reduce the diameter. if the neck wall get's too thick it can't release the bullet and pressures go up quickly.
also, I've had good luck extending all my brass reloading life via neck annealing regularly.
best of luck,
tdbru