CZ550,
Richard Harland and Ron Thomson, both Parks Rangers in Rhodesia used the 458wm and the Winchester solid ammo and reported no issues with the ammo. They both did quite a bit of culling work. Between them they accounted for near 10,000 elephants, mostly cows, but many bulls as well. No flys on the 458wm or the Winchester solids! (BTW, both have published several books on their experiences, the ones that I've read have been great reads and informative as well.)
I wrote this this morning, "Out of a bolt 458wm rifle, I think the 450's are the go to bullet. Another 100fps are available over what has proven really great in my rifle, whats not to love about that." And this is true, but the introduction of the flat nose steel jacketed Hornaday makes me want to add, "450gr flat nose mono solids, or the 500gr flat nose Hornaday steel jackets solids are the go to bullets..."
JPK
