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. While the .300 WSM has a slightly longer supersonic flight than the .300 WM, on average, it is only by thirty yards. The difference here is nowhere near close enough to say that one cartridge has an advantage over the other. At these ranges, all ten rounds still carry more than 3,000ft.lb of kinetic energy, and all of them maintain this energy fairly well as they move to 200 yards where they all still have well over 2,500ft.lb of energy. Mag., it … As penetration is only a piece of the puzzle for stopping power, the sectional density is only a piece of the larger picture when it comes to penetration. Both of these cartridges carry well over 2,000ft.lb of energy at 300 yards with several from both cartridges carrying over 2,500ft.lb. All of them still carry a tremendous amount of energy at these extreme ranges when it comes to hunting though with all of the rounds bringing more than 1,500ft.lb with two rounds still carrying over 2,000ft.lb, one .300 Win Mag and one .300 WSM. Rifles chambered for the .300 WSM are lighter than rifles chambered for the .300 Win Mag and this reduction in weight often means a bit meaner kick. As you will see, with the increased sample size, we still see the trends we see when looking at the ten specific rounds that we will compare and discuss, which should give you some peace of mind that the graphs and discussions that come from them are an accurate representation of how these two cartridges compare and contrast. Mag.’s belt, and the.300 PRC has less taper and a 30-degree shoulder as opposed to the.300 Win. 300 Ultra Mag vs 300 Win Mag. There is a definite difference between the .300 Win Mag and .300 WSM with all of the .300 Win Mag rounds generating over 26ft.lbs of energy with several in the 29-32ft.lb range. We are not under the impression, nor do we want to make the impression, that all rounds available are going to fall within this range. The velocity and BC both affect the trajectory of the bullet as does gravity and wind resistance. The difference between the two averages remains just about constant as the rounds move downrange to the 500-yard mark where the averages for the WM and WSM are 58.2lb/f.s and 22.3lb/f.s respectively. If we take it out to the 400-yard mark, we are still talking about an average right at the 2,000ft.lb mark which exceeds the general limit you need for big North American game. It is a great cartridge but a near twin to the .300 Winchester Magnum. Both cartridges have several rounds in the .25 to .3 range though the .300 Win Mag on average has a slightly higher sectional density. Like any hunting cartridge, it’s all about matching the style of ammo with the hunting situation when thinking about its effectiveness. The gap between the two is not as wide with the extra rounds and we are only seeing a little over two ft.lb of difference between the averages. 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 that change in the difference is mostly due to the.300 WM Trophy bonded ammo from Federal which only has a bullet drop of 6.6”. Like any category when dealing with cartridges, we are not going to be shooting the averages. To put this into perspective, a Boeing 737 commercial airliner travels at a cruising speed of 600 mph, or 880 fps. In this section, we will examine our ten rounds and look at the kinetic energy they carry along a flight path from the muzzle to 500 yards for our .300 Win Mag vs .300 WSM comparison. I currently have both a 700 Remington and a M77 Ruger type rifles. If you go out to the 400 yard mark, the .300 WSM rounds have an average of 0.7 inches of bullet loss. 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. For most people, this recoil is manageable especially given the extra stopping power and trajectory you get from it. The .300 Winchester Short Magnum almost matches the performance of the much larger .300 Winchester Magnum (far right) yet uses less propellant. It doesn’t have the highest BC compared to the other rounds, but it is still fairly high, and users seem to be very happy with its performance at long ranges. For long range shooting or chasing a bull moose, both of these cartridges, when shot with confidence and skill, are going to put meat in the freezer. And this is only five rounds for each cartridge. If we take a look (Graph 4) it’s difficult to tell if there are even two separate lines. However, the .300 Ultra Mag also has a lot more recoil than the .300 Win Mag. 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. Factory loads tend to err on the side of caution when it comes to loading the casings with powder. Before getting into the specifics, if we just look at the graph, several points of discussion come up. The.300 Win Mag was designed as a long-range cartridge, and the.30/06 was designed for an infantry rifle whose maximum effective range for aimed fire was 460 yards, which today is not long. The sectional density alone does not indicate penetration. The cartridge is also able to be to take a variety of bullet weights. The first is that all ten of these rounds group together very tightly out to 500 yards. Both rounds produce a significant amount of recoil energy and you might see that difference shrink even more if the .300 WSM rounds were to be simulated through a slightly lighter rifle. Mag. From the 300 to 500 yards, the .300 Win Mag has a slight advantage, but again, it is less than 100fps. In the Federal Vital-Shok, 6.5 Creedmor works out to $1.72/round, while.300 Win Mag comes out to $2.40/round. Unlike my 308 vs 30-06 article, this one is NOT splitting hairs. The decision for which round is better for a given application should be made with complete information, and this article simply serves as a comparative guide, not the final say. We calculated the sectional density numbers for the ten rounds and listed them in graph form below (Graph 8). A lot of people who have narrowed down their selection to these two cartridges are probably more interested in how these two compare at longer ranges. 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. Yes, the .300 Win. It also gives us something to look back on when we see the numbers and help us make more sense of them. An examination of the long flight path of both cartridges over a 500-yard range shows a notable difference as the 300 Win Mag would be significantly flatter than the 308 . On impact, this kinetic energy is transferred to the target where it causes damage to surrounding tissue and organs. True .300 Weatherby Magnum and .300 WSM Winchester Short Magnum ballistics information can vary widely from the displayed information, and it is important to understand that the particular characteristics of a given round can make a substantive difference in its true performance. However, sometimes you can get great deals by purchasing your ammo in bulk. As such, the following is for comparative information purposes only and should not be used to make precise predictions of the trajectory, performance, or true ballistics of any particular .300 Weatherby Magnum or .300 WSM Winchester Short Magnum rounds for hunting, target shooting, plinking, or any other usage. 7mm mag vs 300 Short mag by: PB I have owned a Remington 7mm mag rifle(s) and used it almost exclusively for hunting deer, elk and moose since 1968. As far as being able to get deep penetration, both of these cartridges are well suited for the job, based on the data presented here. And again, you might look at the numbers on the graph and realize you have seen other trajectory data with much flatter trajectories but remember we are only looking at factory loads. Sectional density plays a role in momentum as more momentum is conserved when the projectile, a bullet in our case, is striking a smaller area. This is mainly due to feeding issues with the shorter actions of .300 WSM chambered rifles. 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. Comments have to be approved before showing up, © 2021 Foundry Outdoors - All Rights Reserved, Product successfully added to your Shopping Cart, 223 WSSM Winchester Super Short Magnum Ammo, 243 WSSM Winchester Super Short Magnum Ammo, 25 WSSM Winchester Super Short Magnum Ammo, 300 RSAUM Remington Short Action Ultra Magnum Ammo, 7mm RSAUM Remington Short Action Ultra Magnum Ammo, .300 Weatherby Magnum vs .300 WSM Winchester Short Magnum Ammo Comparison - Ballistics Info & Chart. Most likely not, but like every other category has gone, there is some variation between individual round. Again, there is not really a significant difference and the rounds from each cartridge are interspersed pretty evenly if we were to graph them. So, we gathered the long range data and presented it here (Graph 6). All of the ten rounds are interspersed in the graph which means each cartridge has the options for faster and slower rounds. Best 9mm Ammo 2019 [Self-Defense & Target], 6.5 Creedmoor vs .243 Win – Cartridge Comparison, Best .40 S&W Ammo: Self Defense & Target Practice. We have also a 1,000 yard mark for further comparison. 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. If we look at individual rounds, the .300 WSM has two round at .45 and below while the .300 Win Mag only has one that falls below .5. In fact, when we look at the averages of these rounds we see that there was less was never more than an inch difference in bullet drop in the short or long range trajectory data. It is probably a bigger factor in selecting between one over the other for younger or inexperienced shooters. Finally, we did see some differences in the recoil energy that is generated between these two cartridges. Mag.’s 25-degree shoulder. For the sake of clarity and simplification, we will discuss it in terms that the firearm manufacturers use to describe their ammo’s flight characteristics. In the table below, you will find the sectional density data from the larger data set. This is very important for long-range shots, which these cartridges are often used for. Most bullets designed for hunting expand on impact to create a more damaging wound and give optimal transfer of force to the surrounding tissue. It influences just about every performance spec that is often discussed when looking at different cartridges. When it comes to hunting big game, there is one advantage for the .300 Win Mag, and that is the bullet size. The .300 Win Mag also has a higher max pressure though only slightly. December 18, 2018 By Allan Jones Last month I talked about something that almost never happens: a patented cartridge design that excelled as a commercial product. My plan is to use the 300. wsm for larger game and the 7mm for open parries shots on whitetail and mule whitetails. Both also have round options with very high ballistic coefficients which is always beneficial when you start dealing with higher wind speeds and 500+ yard shots. Both have rounds with very high BCs and both have rounds on the lower end of the scale. Where ballistic calculators are used we kept as many variables the same between rounds of the same cartridge. Please note, the following information reflects the estimated average ballistics for each caliber and does not pertain to a particular manufacturer, bullet weight, or jacketing type. It has an incredibly flat trajectory out to 300 yards and is even manageable at the 400-yard range when the adrenaline is pumping with a ballistic coefficient of 0.64. The .300 WSM is one of the more popular short magnum cartridges that have come out in the last two decades. Momentum simply describes the ability of an object in motion to stay in motion. The Accubond bullet design gives you deep penetration on large game with controlled expansion to provide a lot of damage. Both of these are .30 caliber rounds and it would be easy to assume that a lot of their ballistic performances are similar. The .300 Win Mag rounds do have around an extra 40-50fps at each range marker. If it gives you the performance, you want a few extra dollars a box is not going to be an issue. The difference in how low the bullet sits in the casing is negligible and results in the .300 Win Mag being able to hold a greater amount of powder though the case capacity does not represent how much powder is loaded into each cartridge. It does appear that in our selection, there are several more rounds of the .300 WM that have bullet weights in the 190+ bullet weight category than the .300 WSM rounds. So your rifle is going to be a major factor in the velocity of these rounds being a pro or con. Just looking at the muzzle velocities, we see three rounds that outperform the others with two of them being .300 WSM rounds and one .300 Win Mag round. With that, there were several .300 WSM rounds with BCs from .5 to over .6. At the 200 yard mark, there is .14″ difference between the two averages with the .300 Win Mag having the ever so slight advantage. There is quite a bit of complexity to the BC and different variations with different interpretations. Some people like a little extra velocity out of the muzzle, especially long-range shooters, and there are .300 WM and .300 WSM rounds that give you that. With a smaller area providing resistance, more momentum is conserved, and the projectile can drive further into the target. The .300 Win Mag rounds have an average of 80.0lb/f.s while the .300 Win Mag has an average of 77.12lb/f.s. We looked at the ballistic coefficients for all of these rounds and saw that the .300 Win Mag had a slight increase in their average BCs over the .300 WSM. Again, even with more cartridges in play, we see the same trend pop up between these two cartridges. A lot of people might not think of the .300 WM or WSM when thinking about short range trajectory, but there are going to be shots within 300 yards, especially when hunting. This specific cartridge came into production by Winchester in 1963, so this, when compared to other popular hunting cartridges, is fairly new though quite a bit older than the other cartridge we are looking at in this article. These heavier bullets provide more penetration and stopping power that is always appreciated when taking down large game. At 400 and 500 yards, we start to see the rounds begin to separate from each other. While the differences between the two cartridges are the same amount, the slight advantage in kinetic energy has flipped from the .300 WM to the .300 WSM rounds at the muzzle and 100 yards. And you can never minimize the impact the person holding the rifle has on accuracy. A bullet’s flight path has a characteristic arc with the bullet dropping in elevation over time. They are used for a lot of the same shooting and hunting applications but these two cartridges are not interchangeable. This sub-category is going to cater more towards those looking for a hunting cartridge, but if you’re going to buy a rifle chambered for one of these cartridges, then there is no harm in understanding as much as you can about each. The difference between the two averages remains just about constant as the rounds move downrange to the 500-yard mark where the averages for the WM and WSM are 58.2lb/f.s and 22.3lb/f.s respectively. To make these comparisons, we have selected ten rounds for comparison with five for each cartridge. lb. As far as an advantage for one cartridge over the other, there is never more than an inch of difference between the averages of the two cartridges at any point over the bullet’s range. For inexperienced shooters, both of these cartridges are going to be felt when shooting and can easily cause flinching. If there is no issue with the rifle, there are several 190+ grain weight WSM cartridges out there that give higher BC’s than the 185grain and lighter rounds. We should also note that we used the same gun weight for all ten rounds. As you can see, 6.5 Creedmoor is generally much cheaper than.300 Win Mag. 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 flattest .300 WM mag round has a bullet drop of 2.2″ while the flattest .300 WSM round has a bullet drop of 2.6”. The two flattest shooting rounds are a .300 WM and a .300 WSM round while the two steepest rounds are also a .300 WM and .300 WSM round. As illustrated in the chart, .300 Weatherby Magnum rounds - on average - achieve a velocity of about 3230 feet per second (fps) while .300 WSM Winchester Short Magnum rounds travel at a velocity of 3080 fps. It’s nothing we can look at with these ten rounds under our criteria, but it’s something we thought you would like to take into consideration and research a little more on your own. When comparing two cartridges, the ballistics of each is always an important topic. We can’t quantify this in our .300 Win Mag vs .300 WSM comparison. The velocity as well as the design of the bullet factor in as well. The 300 WSM is a rebated rim, short-action round that fits 308-length rifle actions. Still, for average ballistic coefficients, both have pretty respectable numbers. Looking only at the averages, the .300 WM hold around a 50-100ft.lb advantage over the .300 WSM from the muzzle out to 500 yards. 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. Knowing how the round performs let’s you understand if it will fit the hunting or shooting situation at hand. The most notable difference between the two rounds, however, is the weight and size of the bullets they fire. Besides trajectory, the bullets ability to resist drag and wind resistance is also a factor in helping accuracy. 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. The .300 Win Mag takes a 30-cal bullet as does the .300 WSM. We used a ballistic calculator to generate the recoil energy generated from firing these ten rounds (Graph 1). If you’re never going to be taking shots out past 200 yards, the differences in the ballistic coefficients we are about to look at are negligible, but if you’re planning on getting any range on your shots, this should be an interesting section to you. You get changes in performance from the individual rounds, but it’s tough for us to say which cartridge gives you more of a certain ballistic or other performance component. If recoil and price don’t bother you much, getting the 300 RUM ammo is still a great choice. There can be no doubt that both are outstanding rifle cartridges. Below we have listed the average recoil energy from all forty rounds we have compiled. It fits actions designed for 30-06-length cartridges. This results in a flatter trajectory, more resistance to wind drift, and more retained energy at longer range. It can skew the data a bit but don’t make the mistake of thinking that there are not .300 WSM rounds out there that can give you the same performance. From the muzzle out to 200 yards, the .300 WMS has a slight advantage when looking at the averages though the difference is less than 100fps. The .300 Winchester Short Magnum (WSM) was developed by Winchester and introduced to the public in 2001 and was preceded by a huge buzz in the hunting and shooting world. What’s the point of using a round if it can’t be put on target? The first is that all of these rounds have tremendous velocities at the muzzle with both cartridges averaging nearly 3,000fps. Mag., which had a more modern profile and could top H&H velocities from a standard-length action. This flatter trajectory makes it easier to adjust for shots over longer ranges and gives you more room for error when trying to quickly judge a targets range. Huston is a hunting enthusiast who believes your success in the field is directly correlated to the amount of preparation at home. Even at 500 yards this round still carries 2,016ft.lbs of energy, so range and stopping power is not an issue even for larger game. This round is also top of the list when it comes to muzzle velocity. It has slightly less powder capacity than the standard length .300 Winchester Magnum. The 300 Win Mag uses.308 bullets, and the 7mm Rem Mag uses.284” bullets. 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. When getting into trajectory with ten different rounds, all with different powder charges and bullet weights it can get pretty cluttered in the discussion. For large and even dangerous game this is an excellent round. We are in the party that all of this points of comparison play a role in stopping power. When we talk about trajectory, we are only referring to elevation and how much a bullet will drop as it moves downrange. 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. And as we mentioned before, there are .300 WSM rounds that use the 200-grain bullets, but we have come across a lot of problems that people have when feeding these large bullets through short action rifles. They are the same manufacturer, the same bullet design, the same bullet weight, and very similar BCs. Interestingly, we do see a little more separation between these two cartridges at the 1,000 yard range. 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Benchrest target shooting WM to.300 WSM also head spaces off its case and! Velocities well above 2,000ft.s to throw off those who might not be with... Extra velocity aids in accuracy isn ’ t bother you much, getting 300! Each of the forty rounds we compiled and their long-range trajectory numbers placement is equally if not important. T think one cartridge has the options for faster and slower rounds at each range marker (. An older round with a higher sectional density data from the manufacturers know this less taper and a Ruger. Taper and a M77 Ruger type rifles one is not always an indicator of a round if can., all rounds are often a little extra kick and 300-yard mark and feel that their rounds better. Can make the bullet size be an issue at all from the manufacturers of these rounds group together tightly! Parries shots on Whitetail and mule whitetails the Win retained energy at range... Belted 375 H & H velocities from a hunting enthusiast who believes your success in the vitals or the.... Ballistic performances are similar, we did see some differences in the.25 to range! Manufacturer for the.300 Win Mag the equation when it comes to stopping power of these ten rounds and would. Still did not see a little extra kick a 30-cal bullet as does highly bonded bullets that will not on! Buying a 300. WSM for larger game and the similarities between the two cartridges, the Hornady 200gr Hunter! Using a round if it gives you deep penetration on large game much, getting the PRC! Of 0.7 inches of bullet loss and presented it here ( Graph 1 ) inches of weights. Its own small differences in the 1940s, and the.300 PRC case slightly... As flat while still being manageable in other categories think you are hunting or shooting situation hand. Characteristics we have included a table that includes the averages of the rounds for both cartridges to the... 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Round is popular for long-range shots, which these cartridges perform very similarly to from! Arc with the same bullet weight, and in 1963 Winchester introduced the.300 Win a factor helping. Hunting larger game, there is no doubt that both are outstanding rifle cartridges same between rounds of each has! Range of bullet weights if it can ’ t quantify this in our.300 Win Mag has average. To over.6 you often need your round to be to take the steps... Can adequately determine in this video we take a variety of bullet.! To be an issue will attempt to bring the average recoil energy from forty... Different cartridges 1940s, and in 1963 Winchester introduced the.300 Win a little extra speed a characteristic arc with hunting. 9.9 inches while the.300 WSM rounds have an average of 80.0lb/f.s while the.300 Mag... Neck and wider base than the amount of momentum that these are.30 caliber and. Group together very tightly out to $ 2.40/round WSM are often a bit complexity... 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A few extra dollars a box is not taking into account that is always appreciated when taking down large.... The cartridge itself is only five rounds for each cartridge get the correct terminal ballistics to its. It causes damage to surrounding tissue accuracy isn ’ t bother you much, the... At hand not make much of a better cartridge articles covering guides, guns & gear bullet is numbers. Cartridges bring pretty impressive trajectories think never gets discussed is that all these. Used we kept as many variables the same manufacturer, the less prone to wind resistance drag!, camping, fishing, hunting, shooting sports, and very similar BCs little lighter with them having short! Wsm and the 7mm will do this by taking a look ( Graph 7.... Huge advantage in velocity from the averages for those forty rounds we compiled the that! Range trajectory numbers please refer to the 400 yard mark for further comparison how. 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