Paul B. said:
"Everyone says how Jack O'Connor used the .270 for everything, yet when asked by Jim Carmichel which cartridge he would use for North American hunting, he immediattely responded with, "The 30-06." That is a direct quote from Mr. .270 himself. My personal preference for elk is my .35 Whelen pushing a 225 gr. Barnes TSX at 2710 FPS bit if push came to shove, I wouldn't turn down the .270, .280 or 30-06.I like 150 gr. bullets in the .270. I use the 150 gr. Sierra Game King in that round for deer and antelope and the 150 gr. Nosler partition for larger game like Black Bear and elk.I haven't decided on exactly what I'll use in the .280 as the rifle is still very new to me so I'm still playing with it. One bullet it seems to like is the 140 gr. Barnes TSX.In the 30-06 I use the 180 gr. Siera Pro-hunter for deer sized game and the Nosler partion 180 gr. for the larger animals although I'll never hunt any of the great bears. Just never had that desire. That's what has worked for my for over 50 years."
Good post. I've.been a .270 fan for 40+ years, thanks in part or at least originally to my father who passed his .270 down to me and was a follower of Jack O'Connor's writings, inspiring him to have a custom Mauser .270 made when stationed in Europe ca 1950/51. However, it is a common misperception that Mr. O'Connor was strictly a .270 fan boy. It's true he was probably it's chief adherent certainly for his day, and had a particular affection for and wrote a lot about it. But he was expert in and enjoyed and recognized the merits of just about all the popular as well as not-so-well-known cartridges...nd ws pretty objective about them all. If he was able to stick around, he might've coined the phrase "it's all good" or would say it a lot these days, but would add it all depends on a combination of your quarry, the environment and conditions of the day, and what
you shoot well.
I--and O'Connor would probably--also agree with the comments that--between the two (and a few others hanging around the 6.5-7.5mm territory) the animal--but especially medium game--won't know what hit him 90% of the time.
I don't recall but, back "in the day," I wouldn't be surprised if, between the two, he also preferred the '06 for a dedicated elk gun/hunt given the available bullet technology of the time,... but would now also agree that today's bullets puts the .270 "back in the hunt."
I don't have but have always been interested in the .35 Whelen as perhaps the ultimate elk'er--certainly of the non-magnums, which makes it the ultimte elk'er in my book

... especially if you have the luxury to specifically purchase an "elk" rifle. I also like that the Whelen has continued to hang in there all these years with all the magnum bad boys getting all the press.