"As Craig Boddington likes to say bullet weight covers sins in bullet construction so if using a heavy for game bullet probably ok"
Isn't that essentially what Elmer was doing with those 300 grain .338 bullets?
Except Elmer used .333 caliber Jeffreys bullets. If he had a .338 caliber cartridge, he could have used Nosler Partitions on those safaris back in the late 50's.
When truth is ignored, it does not change an untruth from remaining a lie.