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While it wasn’t an immediate commercial success, the high velocity .270 Winchester cartridge got the attention of many hunters when first introduced in 1925 with the legendary Winchester Model 54 bolt action rifle. With early .270 ammo loadings pushing a 130 grain bullet at velocities in excess of 3,000 fps, many hunters appreciated the flat shooting characteristics of the round and the fact that it was so effective on thin skinned game.

The .270 Winchester cartridge gradually became extremely popular among North American hunters. Indeed, the renowned gun writer Jack O’Connor was known for his affinity for the 270 ammo and he’ll be forever linked to the cartridge due to his columns featuring it in Outdoor Life.

The century-old .270 Winchester cartridge remains one of the Top 10 most popular centerfire rifle cartridges in the United States to this day. Not surprisingly, virtually every single ammunition manufacturer of note like Barnes, Browning, Fiocchi, Federal Premium, Hornady, HSM, Norma, Nosler, Remington, Sierra, Swift, and Winchester produces several different variants of .270 ammo for hunting deer, elk, moose, bear, and many other big game animals.

Known for being a high velocity, relatively flat shooting, really accurate, and moderately recoiling cartridge (compared to the bigger magnums), the .270 Winchester is a classic deer hunting cartridge if there ever was one. Not surprisingly, it’s especially popular among mule deer and whitetail deer hunters as well as those pursuing game like pronghorn. Jack O’Connor also helped cement the reputation of the cartridge as an effective bighorn sheep cartridge.

Make no mistake though: the .270 Winchester can be an effective cartridge for hunting bigger game like black bear, elk, and moose as well.

However, different situations (like deer or pronghorn at long range vs moose at short range) necessitate the use of different kinds of .270 ammo for best performance.

As is the case with other higher velocity cartridges like the 7mm Remington Magnum and .300 Winchester Magnum, using the wrong kind of .270 Winchester ammunition can lead to disastrous results, especially on bigger game.

Many of the most popular .270 ammo loadings use lightweight, rapidly expanding bullets that are specifically designed for use on thin-skinned game like deer. Those lightweight, thin jacketed bullets tend to perform very well on deer-sized game.