If your particular rifle can handle them, then it’s not an issue at all. At the 200 yard mark, there is .14″ difference between the two averages with the .300 Win Mag having the ever so slight advantage. We used a ballistic calculator to generate the recoil energy generated from firing these ten rounds (Graph 1). At the 300 yard mark, we still see the rounds interspersed, but we do see an increase in the difference between the averages of the two cartridges. One way to think about this is as such: a foot-pound is a unit of energy equal to the amount of energy required to raise a weight of one pound a distance of one foot. And by lighter, it’s usually around half a pound to a pound difference in weight. From the muzzle, all of these rounds show bullet energy levels greater than 3,400ft.lb with two of the Win Mag rounds showing greater than 3,700ft.lb of energy. And while their names are similar, we are going to dive deeper into their performance specs in this comparison. Both the .300 Win. When we talk about trajectory, we are only referring to elevation and how much a bullet will drop as it moves downrange. From the above table, the.300 Win Mag cartridge comes with a smaller edge than the 7mm Rem Mag, though there is an insignificant difference in their ballistics. Finally, we did see some differences in the recoil energy that is generated between these two cartridges. The 300 WSM is a rebated rim, short-action round that fits 308-length rifle actions. Both of these cartridges can be hand loaded to give better performance specs. in the 1940s, and in 1963 Winchester introduced the.300 Win. The .300 Win Mag also has a higher max pressure though only slightly. The .300 WSM is one of the more popular short magnum cartridges that have come out in the last two decades. It is used for both big game hunting as well as benchrest target shooting. This results in a flatter trajectory, more resistance to wind drift, and more retained energy at longer range. In the table below, we have listed the averages of the forty rounds we compiled and their long-range trajectory numbers. It’s still something to think about even if you do have a lot of experience. The .300 Win Mag takes a 30-cal bullet as does the .300 WSM. We offer a 100% Authenticity Guarantee on all products sold on our website. If you look at the individual rounds (data not shown), you will see that the rounds from each cartridge mix thoroughly. And again, while the averages give a slight advantage to the .300 Win Mag, there are several .300 WSM rounds that provide just as much or more bullet momentum than several of the .300 Win Mag rounds. If you are on the range, we like the .300 WSM Barnes VOR-TX TTSX 165gr round. As well as our in-depth look at the 7mm Remmington Magnum. Recoil can influence shots, especially ones where you might not have much time to prep the shot, and it also influences your ability to make follow up shots. Both of these cartridges have rounds that leave the muzzle in the 70-80lb/f.s range with the .300 Win Mag rounds having a slight advantage when looking at the averages. The first is that all ten of these rounds group together very tightly out to 500 yards. Now, it’s not directly correlated such as an extra inch of barrel gives you a certain amount of tighter groupings, but the physics behind a longer barrel and the impact it has on a bullet’s velocity and stability when leaving the barrel implies that accuracy would be positively affected. Most likely not, but like every other category has gone, there is some variation between individual round. A bullet with a higher sectional density should have greater penetration than a bullet with a lower SD. The BC is especially important when you are looking at two cartridges that have been designed to take larger game at long range or for extreme range target shooting where the effects of wind become much more prominent. As far as comparing the two cartridges go, computer-generated data has its advantages in that these small differences are negated as well as a lot of environmental factors. The 300 Win. For most people, this recoil is manageable especially given the extra stopping power and trajectory you get from it. One aspect that has changed by adding the extra rounds is that the .300 WSM seems to keep its slight advantage over the .300 WM rounds out past the 200 yard mark. All bullets, once fired, carry kinetic energy that is generated by the force of the gunpowder being ignited and the weight of the bullet which is basic physics you learned in school. When we look at the trajectory, we still did not see a lot of difference between these two cartridges. From this data set, the .300 Win Mag still has a slightly higher sectional density than the .300 WSM rounds. It is probably a bigger factor in selecting between one over the other for younger or inexperienced shooters. In the Federal Vital-Shok, 6.5 Creedmor works out to $1.72/round, while.300 Win Mag comes out to $2.40/round. The WSM has a bit wider neck and wider base than the .300 WM. We can’t quantify this in our .300 Win Mag vs .300 WSM comparison. Mag.’s 25-degree shoulder. There are flatter and steeper rounds for each and the steepest is only a little over 12″ at 300 yards, which is more than manageable with today’s rifle optics and a little hard-earned experience. The momentum of the bullet is another indicator of penetration, and it goes hand in hand with the sectional density and is the topic of the next section. Most bullets designed for hunting expand on impact to create a more damaging wound and give optimal transfer of force to the surrounding tissue. So with that, let’s take a look at the stopping power of these cartridges. At any range, both of these cartridges perform very similarly. At 400 and 500 yards, we start to see the rounds begin to separate from each other. For hunters, these rounds remain well above supersonic speeds at the distances you will be taking shots from, as you can see from the velocity data above. As you can see, even with the increase in sample size, the general trend we saw in the small sample size remains the same in regards to how close these two cartridges are in bullet velocity. So a .300 Weatherby Magnum round exits the barrel with kinetic energy equal to the energy required for linear vertical displacement of 4070 pounds through a one foot distance, while a .300 WSM Winchester Short Magnum round exiting the barrel has energy equal to the amount required to displace 3580 pounds over the same one foot distance. When comparing two cartridges, the ballistics of each is always an important topic. And we shouldn’t head off without also noting that both of these rounds show close to 45 inches of bullet drop at 500 yards, which is not too bad for factory loads that are more suited for hunting rather than extreme range shooting. Mag. And as we mentioned earlier, the rifle being used might give different results than what you are using. Mag.’s belt, and the.300 PRC has less taper and a 30-degree shoulder as opposed to the.300 Win. Best Concealed Carry Insurance [Comparison Chart]. For big game hunting, the Hornady 200gr Precision Hunter is a great choice. Velocity, when paired with the correct barrel twist can make the bullet more stable. At the end of several performance and ballistic sections, we have included a table that includes the averages for those forty rounds. Those heavy rounds at 1,000+ yards appear to bring the average down a good bit at this range. So, we gathered the long range data and presented it here (Graph 6). The SD is derived from a calculation using the bullet’s diameter and weight. Factory loads tend to err on the side of caution when it comes to loading the casings with powder. We are looking at the energy that is generated when firing these rounds. Some argue that kinetic energy is the most important, some argue for momentum, and some argue that neither give you useful information. We will do this by taking a look at several ballistic as well as other performance characteristics of these cartridges. We just don’t think it’s the best method for looking at two cartridges with a broad view and being able to present you with data that remains consistent. In this cartridge comparison of the 7mm Rem Mag vs .300 Win Mag, we are dealing with two cartridges that each carry loyal users and often find themselves the subject of heated debate on numerous firearm forums and within hunting lodges. Felt recoil takes a lot of other factors into account that is difficult to put numbers with. Now i know with the right bullet the 7mm will do everything i need and at good ranges too. It holds off on the recoil energy just slightly compared to the other rounds but still provides one of the flattest trajectories compared to the other .300 WSM rounds that we have discussed and used in our average tables. While both the .300 Win Mag and the .300 WSM can be found in major retail stores and especially online, there are usually more options for the .300 Win Mag. Both of these cartridges were designed to be able to reach out at far distances and be able to still carry enough kinetic energy and punching power to kill the target on impact and large targets at that. We also think that it is important to note that though we are looking at all of these categories individually and that is only giving you part of the picture. There can be no doubt that both are outstanding rifle cartridges. 7mm Rem Mag vs 300 Win Mag Conclusion. Still, for average ballistic coefficients, both have pretty respectable numbers. This section is probably going to carry more weight for hunters rather than just competition shooters, but it’s never a bad thing to know as much about a cartridge as you can. 300 Win Mag vs 30-06 . The .300 WSM rounds are not too far off staying in the range of 24 to 26ft.lb range. If you were to take the price of every round for each cartridge and average it, the .300 Win Mag might be a couple dollars more expensive, but most people are going to be more concerned with the performance of the round. Where calculations are made, we will be sure to make clear our variables. The .300 Win Mag has also been used by snipers in special forces and military circles, but the majority of its use is in the hunting world. Velocity is an important property of bullets for several reasons. Keep this information in mind as we start to look at the actual data comparing these two rounds. For inexperienced shooters, both of these cartridges are going to be felt when shooting and can easily cause flinching. Based on this, we can begin to see that the differences between these two cartridges, when just looking at the skeletal design, is not the determining factor for which cartridge is going to show a more pronounced bullet drop. See our above point. When we add the extra rounds into the equation, we still see the general trend for the .300 WM having higher recoil energy than the .300 WSM rounds. Mag. Outside of the bullet design, which is going to provide controlled expansion to deliver penetration as well as deliver the huge amount of kinetic energy this bullet carries, it also carries a ton of momentum. It’s always good to look into the similarities and differences of two cartridges, but at times, your decision really should be made based on other factors. In theory, a bullet with a better ballistic coefficient should be more accurate since it should be easier to stay on target after being fired. And because we realize that this is a small sample size, we have compiled the numbers for fifteen extra rounds for each cartridge giving us a total of 40 rounds. Some of this reduced weight often comes from using a shorter barrel, and there are a lot of arguments out there for longer barrels increasing the accuracy of the round. On top of that, this round has an incredibly flat trajectory at 300 and even 500 yards and a BC of .597 which will make things a bit easier when dealing with less than ideal wind conditions in the field. Where some would tend to compare the.300 Win. These characteristics are also advantageous to hunting large game where shots greater than 300 yards are common. We have calculated the bullet momentum by using the bullet’s mass and velocity for each round and graphed them below (Graph 9). Still less than two inches. Most weights are within the 150-200 grain range, but there are several lighter and heavier rounds available. When hunting larger game, you often need your round to be able to penetrate through thick skin and tissue to reach vital organs. It’s no sleight, and we have not made the statement that these are the best available rounds available. This is very important for long-range shots, which these cartridges are often used for. Interestingly, we do see a little more separation between these two cartridges at the 1,000 yard range. And there are some differences in the cartridge specs as well as the types and weights of bullets more often used for each cartridge. From this standpoint of just looking at computer generated data, there is nothing really to discuss between these two cartridges are short range when looking at trajectory. It has slightly less powder capacity than the standard length .300 Winchester Magnum. It’s not that you can’t get what you want of the .300 WSM, but you might have to shop around more for it. If you want a round that is going to remain supersonic, both the .300 WM and the .300 WSM have a number of viable options. The first rifle on our list of best .300 Win Mag rifles is the Model … If we look at the rest of the rounds at the 300-yard mark, there is no difference in trajectory between these two cartridges. The velocity and BC both affect the trajectory of the bullet as does gravity and wind resistance. In our opinion, both sides of the 7mm Rem Mag vs. 300 Win Mag fence offers comfortable, efficient ‘seating’! Sniper Country is reader-supported. When you buy through links on our site, we may earn an affiliate commission. These high-velocity rounds also means a little extra kick. The 2001 release of the .300 Winchester Short Magnum (WSM) saw the first serious threat to the hallowed .300 Winchester Magnum since its release in 1963. 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