7mm-08 vs 308 (Tested Head-to-Head at Long Range)

By Chris Dwulet

Last Updated: Nov 17, 2025

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Chris Dwulet

Chris Dwulet grew up in the heart of the Midwest (Indiana, to be precise, a storied land which gave the world both the machine gun and the mechanical corn picker, thus solving two of mankind’s greatest age-old problems). He received his first experience with firearms in his grandfather’s backyard, where he learned to handle a Remington Model 541 with astounding deftness.

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Chris Dwulet, "7mm-08 vs .308: A Long Range Shootout"
(https://ammo.com/comparison/7mm-08-vs-308)

One was forged for battle. The other was designed exclusively with long-range recreational shooting in mind.

The 7mm-08 and 308 Winchester are both great solutions for anchoring bucks! But is one round superior to the other?

We're shooting l-o-o-ong range today. Let’s lock and load!

7mm-08 vs. 308: Cartridge Specs

Let’s begin by examining the differences between these rounds’ SAAMI (i.e. official) specifications.

Since the 7mm-08’s parent case is the 308, it has almost identical dimensions as well. Both fit in a short-action rifle. This is important to note, as it means the primary difference between the 7mm-08 Rem and the 308 Winchester are the bullets they fire.

Recoil

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The 7mm-08 has less recoil, but only by a small margin.

308 Win factory loads have around 22 ft-lbs of free recoil energy on average. Compare that to the 17 ft-lbs average recoil for the 7mm-08 Rem. That’s about 20% less recoil, which is significant!

Any capable shooter can handle either round’s recoil. But if you were given a choice between the two and only cared about experiencing the lightest possible recoil, then the 7mm-08 would necessarily be your better choice. You’d still have a rifle that can harvest a bull elephant (although hunting elephant with either of these rounds would be inadvisable).

Accuracy

Comparing the accuracy of two different cartridges is extremely difficult, as accuracy is more a product of a rifle and its shooter than it is an intrinsic quality of the cartridge itself. Really, it’s nigh impossible to account for all the different factors that contribute to accuracy.

You could argue that the lower recoil of the 7mm-08 would lead to better accuracy. It’s certainly not enough to guarantee better accuracy, though.

Simply put, both the 308 Win and the 7mm-08 Rem are going to deliver sub-MOA groups so long as you do your part.

Trajectory

A bullet’s trajectory is the path it travels en route to its target. It’s measured by stating the bullet’s elevation, in inches, at multiple distances leading up to and extending beyond the target; e.g. -1.5” at 0 yards, 2.2” at 100 yards, 0.0” at 200 yards, 300, -6.3” at 400 yards, and so on.

It’s common to describe a cartridge’s trajectory as being “flat.” The constant force of gravity renders it impossible for anything with mass to exhibit a truly “flat” trajectory. What “flat” really means is “flat compared to other cartridges.”

The 7mm-08 and 308 have almost identical bullet drops at 400 yards when their bullets share a similar weight. The difference between the two rounds becomes more evident when you get out into the longer ranges.

That being said, even at 700 yards, a 308 bullet drops approximately 138” and a 7mm-08 drops approximately 126”. That’s only a 12” difference.

Now, you could argue that this could spell the difference between a hit and a miss, and you might be correct. However, it is rare that you would be shooting factory ammo across such extreme distances.

That’s strictly handload territory. Although there is a slight difference in trajectory at extreme distances, the 7mm-08 and the 308 have very similar trajectories at almost all practical ranges.

Ballistic Coefficient

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”Ballistic coefficient” (BC) is a term that shooters either really pay attention to or avoid like the plague. Put simply, BC is a mathematical representation of how aerodynamic a bullet is and how well it resists wind drift.

Heavier bullets typically have higher BC. A higher BC means the bullet is more streamlined and is less susceptible to wind drift than a bullet with a lower BC.

Since the 308 Winchester can fire heavier bullets, you might logically assume that all 308s have a higher BC. In reality, this is not necessarily the case.

In general, 308 bullets have slightly higher BCs than their 7mm-08 counterparts, but we are again splitting hairs here. Several 7mm-08 bullets outperform the 308, too. Consider the most common match grade bullet for the 308 Winchester: the 168 grain Sierra MatchKing, which has a BC of 0.450. Then consider the 7mm-08 139 grain SST bullet, which has a higher BC of 0.486.

Bottom line: Both the 308 Win and the 7mm-08 Rem have spectacular BCs and resist wind drift effectively.

Sectional Density

Sectional density (SD) is a measure of how well a bullet penetrates a target. This is extremely important for big game hunters who need a bullet that can punch through thick hide, bone, and sinew.

SD is calculated by comparing the bullet’s weight and diameter. The higher the number, the greater the bullet’s capacity for penetration.

The 7mm-08 bullet’s narrower diameter helps it penetrate flesh more efficiently. For reference, a 140 grain 7mm-08 bullet has an SD of 0.248 – the same as a significantly heavier 165 grain 308 bullet!

This is a big selling point for the 7mm-08: similar penetration out of a lighter bullet, with less accompanying recoil to boot.

7mm-08 vs. 308 for Hunting

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Now we come to the topic that ties all these ballistic performance data together: hunting! All the calculations in the world cannot compare to real-world data on how each round performs on game.

The 308 has been the gold standard for hunting since its commercial release in 1952. You can find just about any type of 308 rifle you want, factory ammo for virtually any application, and abundant reload data for the same.

Whether you're stocking up for hunting season or extended range sessions, bulk 308 ammo offers the best value for serious shooters who go through high volumes of ammunition.

.30 caliber bullets are well known for their lethality. The 308’s ability to fire heavier bullets makes it a great choice for larger game like elk, caribou, and even black bear. The most popular 308 Win factory ammo is typically loaded with 150, 165, and 180 grain bullets, with 200 grain bullets being at the far end of the spectrum.

When it comes to factory-loaded 7mm-08, your options are more limited. Typical hunting ammo is loaded with 100, 120, 140, or 150 grain bullets, with heavier loadings at 160 and 175 grains for larger game.

Is one round “better” when it comes to hunting? That depends on what your intended game is.

If you’re hunting varmints like prairie dogs, groundhogs, or coyotes, then you should lean toward 7mm-08. Its low recoil and lighter bullets make it an ideal choice for taking small game.

The 308 is a bit too much for a small game. You can definitely use it, but it may feel like overkill (unless you’re the kind of patriot who would use LGM-118 Peacekeeper missiles for squirrel hunting, if you had the option).

The overlap between these two rifle cartridges becomes apparent when we enter the realm of deer hunting. Both are exceptional when it comes to harvesting whitetail, mule deer, and pronghorn.

The general consensus amongst big game hunters is that the 308 Winchester is the superior choice when it comes to large game like elk and kudu. For the most part, I do agree that the terminal ballistics of the 3.0 caliber is better suited for taking large game.

7mm-08 vs 308: Ballistics Tables

Check out these ballistics tables for 308 and 7mm-08! They make it easy to compare the two rounds’ velocity, striking energy, and elevation at any given distance within 500 yards.

308 Ballistics

For a deeper dive into how the .308 Winchester performs across popular factory loads, including velocity, energy, and drop at various ranges, see our 308 ballistics page.

Note: This information comes from ammo manufacturers. Actual ballistics obtained with your rifle can vary considerably from advertised ballistics. Also, ballistics can vary from lot to lot within the same brand and load type.

7mm-08 Rem Ballistics

Note: This information comes from ammo manufacturers. Actual ballistics obtained with your rifle can vary considerably from advertised ballistics. Also, ballistics can vary from lot to lot within the same brand and load type. For complete muzzle energy and trajectory data, see our detailed 7mm-08 ballistics chart.

7mm-08 vs 308: Conclusion

If you’re in the market for a great rifle cartridge, look no further than the 308 Winchester or the 7mm-08.

Both will serve you well in the forests of North America to the African Serengeti.

If you’ve trained on 308 Winchester for years and are looking to hunt big game like elk and caribou, grab some hunting loads and head into the woods to claim your trophy.

If you're looking for a rifle with less recoil, flatter trajectory, and similar ballistic performance to a .30 caliber, then the 7mm-08 might be the better choice.

Regardless of which one you choose, either will get the job done over longer distances – so long as you do your part. Get out to the range and practice with your favorite. You won’t be disappointed with either of these amazing big game hunting options!

Written by

Chris Dwulet