Have you guys got Jack O'Connor confused with the idiot that wrote the article in the first post?

Jack O'Connor used his .270 rifles all around the world, including as the sole plains game rifle on African safari's. He wrote of it, it doesn't need to be inferred.
He also used many other rifles, including doubles. He was a gunwriter and gun editor of the largest outdoor magazines in the world for years. He owned about 20, many of them custom rifles.

He was quite well known as an excellent shot on game, spoken of as such by people that hunted with him, and particularly as a superlative shot on running animals, something put down to so much practicing on jackrabbits in the desert with his big game rifles.

He shot many of his grand slam of sheep with his .270, it was the perfect mountain cartridge, that was the whole point of the thing, mating the .270 Win with a light rifle.

What on earth makes you guys think he 'sucked as a shooter' or only shot one sheep with a .270...?

I could dig out quotes from him and other people but...you guys are supposed to be gun guys, why don't you know about Jack O'Connor? Go and read some of his books, he wrote enough of them.

(As for moose, he wrote that he never killed a mature bull moose with one shot with a .270. But then he said it happened that he never saw a big moose killed with one shot with any cartridge.)