The test report was just that...a test to develop a load for a 720 grain cast bullet in the .458 Win Mag. I did not recommend the loads nor were they intended to be load data.

If one chooses to reload ammunition then one takes the huge responsibility along with it. A highly educated reloader is a safe reloader.

Heavy bullets typically penetrate deeper than lighter bullets. The 720 is heavier and should penetrate deeper than a 500. A heavier bullet at a lower velocity has a slower recoil velocity and is less punishing to the shooter. The 12 gauge shotgun proves this point nicely.

I have a passion for heavy bullets..is that reason enough?

Everyone has their theory on rifles and cartridges for dangerous game. Some prefer 2300 fps others 2500 fps and still others 2150 fps. John Linebaugh...1250 fps. The Big Five have been taken with the 454 Casull, 500 S&W, 45-70, 8 Bore and of course Karamoja Bell with a 7x57...to mention a few.

Ask a Bison hunter about his favorite 45-70 load and how it penetrates completely through a 2000 pound Bison. Heavy cast bullet at low velocity.

The 720 grain .458 cast bullet seems to be stable in a 1 in 14" twist barrel and can attain a velocity in the neighborhood of 1600 fps..safely. A 720 grain hard cast bullet at 1600 fps will certainly take any animal on our planet.