That is hilarious.
Al Miller didn't do it justice either.
At least it does show how fast 74.0 grains of H335 will make a 510-grain Lyman cast bullet go
from a 24" Ruger No. 1: 2185 fps 5-yard instrumental.
Unfortunately, it was sized to .459" and only fired 3 times, from kneeling
Torque and fear of dislocated shoulder, despite Allen shooting coat and strap-on pad ?
I have only noticed torque when shooting a .577 Tyrannosaur fully loaded.
Al needs to get a better grip and practice with a lighter load
before going to 2200 fps with 500-grainers.
Here is just the practice load for him.
First, here is the rifle that revived my interest in the .458 WinMag, and my first decent cast bullet load for it in 2017,
it is a Pre-'64 M70 .30-06 action with a take-off CZ barrel set back 1/8" and rethreaded and re-chambered
with a SAAMI .458 WinMag reamer: