Hunters will argue endlessly about which rifle caliber is best for deer hunting. Most of us gravitate to whatever our hunting mentors put in our hands, or to whatever rifle got handed down to us.
There are more deer calibers on the shelf than there have ever been. These are the ones worth your time.
A Quick Overview of Rifle Calibers
When we talk about a rifle's caliber, we are talking about the size of the bore. These are measured in either metric or imperial measurements. For example, when someone says a rifle is 22 caliber, they mean that the bore is .22" in diameter, or if someone says a rifle is 7mm, it means the bore is 7 millimeters in diameter.
Popular Deer Rifle Calibers
For big game like deer, a handful of calibers come up again and again. While these are not the only calibers that can be used for deer hunting, they are the ones that many hunters use.
.30-06
The 30-06 has been around for over a hundred years, which tells you most of what you need to know. It will take any big game animal on the continent and the recoil stays manageable for most shooters.
The 30-06 is overkill for smaller deer like whitetail, blacktail, or axis deer, but if you are hunting a variety of big game and only want to invest in one gun, it is worth considering.
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.308
The 308 is battlefield tested and proven. It was the round the military adopted to replace the 30-06. It shares many characteristics with the 30-06, and you can trust it to shoot well out to 500 yards. The 308 has great knockdown power and high precision, which makes it ideal for shots where you need to put the deer down where they stand.
.243
The 243 caliber is often considered one that is best suited for children as it finds itself listed as the minimum caliber for deer hunting in many states. That reputation is not deserved because it is a fine rifle caliber for both deer and predator hunting.
The 243 has light recoil and is easy to shoot but very accurate and effective. While this is a good caliber for youth hunters, it is also a fine caliber for anyone who hunts deer.
6.5 Creedmoor
The 6.5 Creedmoor has become one of the most talked-about calibers in recent years, sparking plenty of debate about its effectiveness as a hunting round. It is a fine caliber for both match shooting and hunting, but it really shines at long-range shots. At shorter distances, the 6.5 Creedmoor performs on par with the 308.
The 6.5 Creedmoor will cleanly take down any deer, and even elk, but if you are not shooting long ranges and already have a 30-06 or 308, you might as well stick with what you know.
.270
This is a great deer rifle caliber with a flatter trajectory than the 30-06 and less recoil. If you are not a long-range shooter but want a caliber that shoots well and hits hard, the 270 fits the bill.
Many hunters weigh the 270 against the 6.5 Creedmoor. The Creedmoor offers lower recoil and higher accuracy at longer ranges, but the 270 hits harder at shorter ranges.
.223
The 223 caliber is most associated with the AR-15 rifle, and many hunters consider it too small to kill deer. In fact, many states will not allow it for deer hunting, but in states where it is allowed, it is worth considering in some situations.
The 223 has low recoil and is very accurate, but it does not pack the same punch as the other calibers on this list. This caliber is not suitable for mountain hunts or shots at steep angles. If you are hunting mule deer in the backcountry, consider another caliber on this list, but for whitetails out of a tree stand or blind, the 223 will get the job done.
How to Choose the Right Caliber for Your Needs
Choosing a rifle caliber comes down to four factors: your budget, the type of hunt, the game you plan on hunting, and your skill level.
Budget matters because rifles and ammo are expensive. Figure out what you can spend on ammunition, not just the rifle itself. If you cannot afford to shoot it regularly, the rifle is an expensive paperweight.
The type of hunt shapes your range requirements. Mountain hunting calls for a caliber capable at long distances, while hunting from a treestand in eastern hardwoods favors shorter-range power.
The game you pursue also drives the decision. If you hunt a wide range of big game, the 30-06 covers most of it. If you are exclusively after whitetails, lighter calibers like the 223 can work in the right setup.
Finally, be honest about your skill level. There is no point investing in a long-range rifle if you rarely shoot past 200 yards.
Picking one and sticking with it
Most hunters settle on a caliber and stay there, which is sensible given what rifles cost. Pick for the hunting you actually do rather than the hunting you imagine doing.
About the Author
Nick Sawinyh - Nick Sawinyh is a father, husband, hobby farmer, and gun enthusiast from Kentucky. He founded GunsNation and writes most of what appears on this blog.
