Home Forums Hunting & Shooting Express Rifles and Big Bores Only The great 458 Winchester. Everyone should own one at least once

The trick for the paper-patched in the .458 WM is to FL-size the case with a Redding FL die.
This reduces the brass to smaller diameter such that the PP bullet cannot enter the case
until the Redding neck-expander/belling plug is used to expand the neck for only about a quarter inch of depth from case mouth.
Any mild compression of BP is done in seating the bullet.
Yes, the Redding dies size to smaller diameters than the RCBS, Lee and Hornady FL dies.
I finally found a use for the Redding .458 WM dies.

Both loads are lightly touched with a Lee Factory Crimp die, the paper-patched more lightly than the grease-grooved.