Buddy is looking at a 458 Win Mag. He's got a good supply of once fired 338 Win Mag. In 458, silly elephant killing monolithic solids left over from a previous rifle he sold. Crazy to shoot them just to get brass. Even pulling the bullets is a little silly, he crazy enough to go back to Africa again.
Has anyone fire formed 338 to 458? 300 Win Mag? 7mm Win Mag? Have all three in the drawer.
I've blown out a number of other cases over the years. 30-30 to 38-55 being the longest stretch that I can remember.
Curious if anyone has done it and what your recipe was.
When I was doing it before it seems ~10 grains Unique, toilet paper, screenings from under the grain dryer(free as opposed to buying corn meal, and they are starting to shell corn around here) and either toilet paper or a 1/4" thick wax plug.
Wax plug seemed to work a little better, along with having the rifle vertical when firing.
Anybody?