Home Forums Hunting & Shooting Express Rifles and Big Bores Only Favorite 458 WM loads with 500 grain

A rule of thumb with 500 grain 458 Winchester loads. If the powder works well with 50 grain bullets in a .223 Remington, it will work well with 500 grain bullets in the 458 Winchester.

AA 2230 and Ramshot Exterminator (now the same powder) have worked well for me.

H-335 has worked well.

Phil Shoemaker uses IMR 3031. Nuff said.

Woodleigh bullets recommends Hodgdon Benchmark in their reloading manual.

I use a Lee Factory Crimp die to apply a good crimp.

As the 458 Winchester is a short case to begin with, and you need all the neck purchase you can get, only trim 5 thou off the case. 2.495 inches.