The most noticeable difference is in the neck diameter where the .308 is much wider to fit the larger caliber bullet. Once you move out to longer ranges, the .243 showed a slight advantage over the .308 with a less pronounced bullet drop. Regardless of the difference, every round shows less than 5 inches of bullet drop at the 200-yard mark. Not enough to choose one of the other based solely on price in our eyes. We calculated the momentum of the selected rounds and graphed those numbers from the muzzle out to 500 yards (Graph 10). Gun nuts, hunters, competitive shooters, and people who are a mixture of all three are constantly looking at the wide selection of cartridges available and trying to determine which is more useful. And just look at all the long-range and PRS rifles being built around 6mm cartridges right now. For the heavier bullets that the .308 uses, it’s going to need a little more force to get those bullets at the speed needed for proper terminal ballistics The .243 is also longer than the .308 and cannot handle as high an internal So, now that we have a good basis of comparisons of the .243 vs .308, we can take a look at situations where one cartridge might be favored over the other. For hunting smaller game such as coyotes, bobcats, ground squirrels, prairie dogs, badgers, varmints, and so on, there is absolutely no question that the .243 Winchester round is better suited for the task. There is quite a wide range for both of these cartridges. As an Amazon Associate we earn from qualifying purchases. I've killed a few deer with a .243 and seen several more .243 vs .30-06 killed by .243's and 6mm's. SD along with velocity and bullet type all factor into penetration, and we will discuss how it all ties together in the application section. And because there is always the chance that using such a small sample size might not give us a fair representation of the entire set of options that are out there, we have compiled the data for more rounds. At the end of each section, we will present the averages for the larger sample size and discuss the results briefly. In this graph, we take a look at our ten rounds and see how they compare and if the same trend continues from what we saw in the previous graph. The .243 serves well in several roles as well when it comes to hunting. And if you are thinking that extra light .243 rounds (under 60gr) are skewing the data, the average muzzle velocity with those two rounds removed is 3140fps and the 500 yard average is 1900fps. Less recoil, plenty of power for deer, flat shooting. While hunters might not be taking shots at distances where they need to be worried about the bullets wind and drag resistance, it can’t hurt to know as much about your cartridge as possible. For the .243, you’re looking more at an average price of $30 for a box of 20 rounds. For a cartridge comparison such as the .243 vs .308, potential users want to see which has a flatter trajectory, meaning it shows less bullet drop. The .243 rounds have an advantage in trajectory, but their lightweight bullets are going to be affected by wind more so than the heavier .308 rounds which also have slightly better BCs overall and sometimes a large advantage. At this point, the averages for both cartridges is 9.72 inches for the .243 and 14.68 for the .308. With a decent recoil pad and proper shooting position, the recoil is manageable for adults. Yes, I would also consider 7mm-08..243 is plentiful, but prone to rapid barrel wear and from what I read tends to be more finicky in matching load to barrel. The .243 ammunition is cheaper than the .308, and it’s flat trajectory and high speeds make it a fun and affordable round to use on the range. The 243 is a distant third, especially given the 300 yard requirement. Trotz der Tatsache, dass die Meinungen dort ab und zu nicht ganz objektiv sind, bringen sie ganz allgemein eine gute Orientierungshilfe Still, because they are different from other .243 Win rounds, we will keep an eye on them as we move into other categories. And while newer and flashier rounds have come onto the scene, some of the top shooters in the world still load a .243 and they win with that cartridge consistently. The .243 Win also has a pretty rich history in the long range shooting community. These two cartridges are not often used in home defense settings, so we will focus on knockdown power regarding hunting scenarios. In the end, we are not going to try to make a claim for which is the best. And the same goes for .243 rounds though the issue often arises when handloading the cartridge too hot. Because stopping power is a culmination of a lot of different factors, we don’t ever try to get into the argument of which metric is the best indicator of a rounds stopping power. For shots taken at extended ranges, a higher BC often means fewer adjustments will have to be made to get the bullet on target. We kept the gun weight constant at 7lbs and used the average for several popular powder brands provided by Nosler load data for each cartridge. Regardless, we will see that there are quite a few similarities between these two rounds which can be attributed to the .243 being a modification of the .308. As we go through these various categories, keep in mind that they all play off of one another and all influence the performance and profile of each round. You have entered an incorrect email address! Today, the .308 Winchester round is enormously popular throughout the world and rifles chambered for it can also chamber and fire the 7.62x51mm, but not the other way around.eval(ez_write_tag([[300,250],'gunnewsdaily_com-box-3','ezslot_2',116,'0','0'])); The speed and power of the .308 make it a suitable round for snipers and marksmen in a combat situation, or for hunters looking for big game such as deer and elk. We do see the rounds begin to distance themselves from each other a bit more. And we realize that most of you are already aware of what we are about to say, but trajectory is far from the only performance spec that needs to be considered when thinking about a cartridge you are wanting to use. Overall, the price of these cartridges is not very different. So, before we look at the ten rounds, let’s take a general look at the recoil energy generated by the two cartridges (Graph 1). With heavier bullets, you will have to compensate for elevation loss, but you can always improve this by going with a slightly lighter bullet or higher pressured round. Even with the heavier .243 Win rounds, there is still a very significant gap between them and the .308 Win round with the lowest momentum. Momentum is tied in with sectional density because of the idea of resistance. We will take a look at several ballistic categories and performance specs important for hunting and general shooting and discuss the similarities and differences between the two. With this information, we can begin teasing apart where these cartridges would be better suited. Meanwhile, the difference is much more meaningful when you are using a lighter .243 load, which has a much smaller SD. BALLISTIC ANALYSIS. It all depends on the quality of the cartridge as well. The .243 is a light and high-velocity cartridge that is one of the best for varmint and predator hunting. This cartridge provides incredible trajectories with only 3″ of bullet drop at 200 yards. When the data was calculated we used the muzzle velocity for each round, the bullet weight, the gun weight, and the powder charge. Also, keep in mind that some of these rounds might have less or more powder when used in reality, so the recoil energy may vary a little. We compiled data from the manufacturer when available and also from ballistic calculators. There is no debate on this category when comparing the .243 and .308 cartridges. The above numbers indicate quite a significant difference between these two cartridges. Whitetail do not have the thick hide or bone structure that is going to require a lot more momentum to punch through cleanly. And there is no overlap between these two cartridges. They are still important components to stopping power as well are the components we are not going to discuss here. With two decades of chasing all manner of upland game, hooved mammals, strutting gobblers, and any small game that can fit in his Dutch oven, he hopes to offer new ideas and viewpoints on hunting and firearm concepts and traditions. I chose a.243 over a.308 because I could shoot higher BC bullets, faster, with the same amount of powder and the same length barrel. More importantly, this round maintains the velocities to cause sufficient penetration and expansion, and it carries more than enough stopping power out to 300 yards which is excellent for a .243 hunting round at this weight. This section is as clear of a decision as any other category we will discuss on the .243 vs .308. The reason is that both have the same mass, and we are assuming similar velocities, but the force that is generated behind bullet B is localized to a smaller surface area than bullet A. For the heavier bullets that the .308 uses, it’s going to need a little more force to get those bullets at the speed needed for proper terminal ballistics The .243 is also longer than the .308 and cannot handle as high an internal pressure as the .308 Win. And receive our newsletter with the best articles covering guides, guns & gear. Was wandering what kind of recoil to expect from a 308? You guys have to be tired of hearing us say this, but you also can’t forget that we are not bringing bullet design into the equation. It’s been widely accepted by military and police marksmen, sharpshooters, and snipers. All of these rounds maintain supersonic speeds out to 500 rounds and probably will for another several hundred yards. A good range of bullet drop on this average as we did with the.243 Win.. And 12ft.lbs of energy close out the differences in its profile, gained... Factory loads shoot bullets in the momentum between these two cartridges below the 1,000ft.lb by! 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