I have owned and hunted with many calibers over the years (30-06, 300Win Mag, 7mm Rem mag just to name a few). As primarily a deer/black bear hunter in the North East, I have been bombarded over the last 30 years by many old antiquated opinions on what caliber is best. It almost laughable now remembering what magnum calibers a lot of less experienced hunters swore they needed to give the best killing power for big whitetail deer.

After years of research, my own successful hunting and reading what professional big game hunters have used over the years, I kept seeing the 270 Winchester come up again and again especially by the real professional hunters. I read 3 books from the late Jack O'Connor that pretty much should be required reading for all big game hunters. Jack O'Connor is brilliant, educated and extremely experienced with game all over the world. He knows how to kill big game and he applies common sense. A good friend of Roy Weatherby, Jack knew all about what magnum calibers were capable of, providing they were shot out of a 26" barrel. Jack even shot several of Roy's calibers on a few hunts all to gain more experience in what was capable of the super magnums. The ballistic coefficient of the 270 was outstanding when Jack used it and with todays modern bullets have only raised the bar on the 270. When Jack used his then modern bullet of a 130gr jacketed soft point and has killed over 14 Grizzly Bears with the 270 and all have been from one shot kills. Several dozen Elk with 130 grain bullets with one shot kills some from over 290 yards, Rams,Moose, African game,etc... Its almost embarrassing to question the killing power of the 270 Winchester especially that we have better powder and bonded bullets that can do it all. Todays new hunters are bombarded by media that has to push the latest super magnum and talks these new hunters into believing they NEED this caliber or bullet hole size.

There will never be another hunter like Jack O'Connor simply because his experience and time in history gave him the opportunity to hunt like no other hunter will ever do in todays world. Its a shame the new hunters wont spend the time to research from the great ones before them like JOC. I wish I would have 25 years ago. If anything I have learned from reading the books from Jack O'Connor is that, not much has changed in the caliber wars since Jacks days.
FYI, Jack hunted with many other calibers like the 30-06, 375H&R, 7Rem Mag,etc just to name a few. He certainly could use the phrase "Been there, Done that" with about every caliber. He knew what all those calibers could do but the 270 Winchester was still his favorite so that should tell you something.
Here is a three shot group at 100 yards with Hornady factory loads.
It was a bit windy and I know I can get a better group at 300 yards than this.
