The averages definitely lean towards the .300 WM rounds for higher momentum. Does the perfect muley cartridge really exist? What is interesting is that as these rounds move downrange, the gap between the two cartridges begins to close. That’s the year Winchester brought to market its now famous 300 Winchester Magnum. The 7mm Rem Mag rounds have more options for higher muzzle velocities, flatter trajectories, and better BCs which helps performance greatly downrange. While there are general rules of thumb for what is required, nothing is set in stone, and as we just mentioned, there is more involved than just bullet energies. used the 7mm alot from the 80s and for me it was a pretty hard kicker not much less than a .300 Win Mag. While hand loading and the art of balancing the various components that go into a cartridge is a topic worth discussing, it is beyond the scope of this article. Even with today’s rifle optics, you can ask anyone whether adjusting for a 45″ drop or a 65″ drop is easier and 45″ will be the answer every time. Discussion Starter • #1 • Mar 20, 2009. Even so, it’s really more about picking the correct round rather than the correct cartridge. Mag. As the names imply, the .300 Win Mag takes a 30-cal (.308″) bullet, while the 7mm Rem Mag takes a smaller caliber (.284″) bullet. Given that, I would happily and eagerly hunt anything with either cartridge — even charging brown bears. As an example, let’s take two rounds, both are 100gr, but one has a diameter of .100″ and the second has a diameter of .200″. Mag. Winchester Ballistic Silvertip ammunition provides hunters immediate knockdown and extreme precision. We will look at several ballistic categories as well as other performance specs throughout the article, and we hope that in the end, you come away with information for a more educated decision based on your hunting and shooting needs. A war’s been raging since 1963. In my opinion both the SAUM and WSM … And with the internet at your disposal, finding exactly what you need has never been easier. After we have examined these sections, we should have a much clearer understanding of where these cartridges excel and where they fall short and will let us begin teasing apart applications one cartridge might be favored over the other. Let’s see if the trends continue in the same direction when we look at more rounds for both cartridges. Since these two cartridges were nearly identical in their BC’s, let’s see if the same trend continues when you look at the short and long range trajectories. And like we have mentioned before, using a proper bullet and putting it in the right spot can make up for lack of energy. Before we wrap up this article, we want to take the ten rounds we have been looking at and pick a couple that we think fits certain applications well. For such a difference in recoil, it usually means there is a performance spec out there that the recoil energy is resultant from. Ballistics Comparison for 270 The .300 Win Mag is not only a hunting caliber but is also favored by long range competitive shooters. Both of these magnum rounds have been in circulation for just about the same amount of time. When we look at the price of the 7mm Rem Mag vs .300 Win Mag, it can vary from round to round. Even then, two people’s results can be drastically different. The majority of bullet weights used for the 7mm rem mag rounds for hunting purposes fall between 150 and 180gr though there are outliers of lighter and heavier bullets. WARNING: In factory loaded ammunition, you’ll be hard pressed to find 300 WM ammo with bullets heavier than 180 grains. It has a rebated rim, bottleneck casing with a 1:9.5 twist on a large rifle magnum primer. It charts everything; drop, time, energy, velocity, range, and does so in 50 yard steps that are easy to understand. We are looking at the bullet drop (inches) from the 50 to 300 yards with the firearm zeroed in at 100 yards. 3.89 lbs. 300 Remington Ultra Magnum Load Data; 7.62x51mm NATO Load Data; 8x57mm JS Mauser Load Data; 8mm-06 Load Data; 325 Winchester Short Magnum (WSM) Load Data; 8mm Remington Magnum Load Data ; 338 Federal Load Data; 338-06 A-Square Load Data; 338 Winchester Magnum Load Data; 330 Dakota Load Data; 340 Weatherby Magnum Load Data; 338 Remington Ultra Magnum Load Data; 338 Lapua Magnum … And you can’t discount the role recoil can play in accuracy. The following ammunition cartridge ballistics information and chart can be used to approximately compare .270 WSM Winchester Short Magnum vs .300 Winchester Magnum ammo rounds. The second metric that we will use to get an idea of how these two cartridges compare in potential penetration is the momentum of the bullets. When you buy through links on our site, we may earn an affiliate commission. And we can’t rule out the fact that we could change the bullet weights of these two rounds and close or widen the gap. By the time they reach the 500-yard mark, that difference is nearly cut in half to 224.4ft.lb of difference. 3.5 lbs. It’s all nitpicking to us. In ballistics catalogs the point of maximum bullet rise is often called the mid-range trajectory, or sometimes the maximum ordinate. The heavier, larger caliber bullet delivers more energy at all ranges despite starting with a slower MV. We think the 168gr bullet is a great weight for hunting purposes as it has a manageable recoil. Below, you will find the numbers for the larger data set. For penetration, we will actually look at two different metrics, the sectional density and the bullet momentum. Huston is a hunting enthusiast who believes your success in the field is directly correlated to the amount of preparation at home. This speed along with the sectional density is going to be more than enough to penetrate to and through vital organs of big bull elk and moose at long ranges. Again, this is all relative and depends on who is holding the gun. 1,002 Posts . And, this is of course omitting the type of bullet that is being fired which in the field, is going to have to be taken into consideration. By Ron Spomer. vs. 7mm Rem. As well as our in-depth look at the 7mm Remmington Magnum. A war’s been raging since 1963. I think that Hornady and its highly experienced team of ballisticians know well enough how saturated the market is, as well as understanding the needs of the long-range community. The 175 grain bullet worked well on Elk and caribou for me. The cartridge is also able to be to take a variety of bullet weights. We have graphed the bullet momentum of our ten rounds and graphed them below (Graph 9). Maximum 60°C; Minimum -40°C . Because a lot of the discussion is going to revolve around these ten rounds, and because we are very aware of the possible issues when trying to use a small sample size to extrapolate performance to a much larger field, we have compiled extra rounds for each cartridge. By doing this, you as a reader has a better resource and source of knowledge to make your own decision. Let’s run a quick ballistic comparison and see the tale of the tape. Best Concealed Carry Insurance [Comparison Chart], If you’re looking at a cartridge comparison, you are going to end up looking at the ballistic categories. vs. .300 Win. In this case, the 7mm Rem Mag shows slightly less bullet drop than the .300 Win Mag round and even at their most distinguishable range, we are only looking at around 5” difference. Handgun Back. fans don’t jump in here and spoil the argument or I’ll let the 300 RUM lovers counter. Compare all 7mm Remington Magnum ammunition manufacturers on one easy to read chart. When we look at more rounds for each cartridge, we still see that the 7mm RM has higher velocities than the .300 WM rounds at each marker through the bullet’s range. Those are always the deciding factors: right bullet, right place. We did feel the need to mention it, but both the 7mm Rem Mag and the .300 Win Mag cartridges can drive nails with some practice on your end, and they can do it from a distance. In our opinion, you can become accustomed to any recoil within reason it still stands that certain amounts can cause you to flinch or close your eyes before a shot. Bei der 7mm Rem Mag sollte man bedenken, daß sie einen etwas längeren Drall hat als die 7x64. With a degree in Microbiology and several years of doctoral work manipulating bacterial genes, he attempts to merge the rational and unbiased thinking of scientific research with the passions of hunting and fishing. At the 200 yard mark, all ten of these rounds are clustered very tightly with a difference of only .7” between the flattest and steepest round. Compare all .300 ammunition manufacturers on one easy to read chart. By Ron Spomer. Deciding which you prefer comes down to levels of recoil, downrange energy, bullet drop and bullet drift, none of which are significant unless you plan to be throwing at targets beyond 500 yards. The averages of the rounds for each cartridge have a difference of less than .4”. With just two rounds, it might be easier to get an overall view of how these two cartridges stack up before we throw eight other rounds into the mix. entsprechend lange/schwere bleifreie), so kann es sein, daß diese nicht mehr präzise fliegen. You can find .284 bullets from 100-grains to 180 grains, .308 bullets from 100- to 230-grains for handloading but — and this is a significant but — factory loads may throw you a curve! We have kept some of these variables as constants to better compare the two cartridges. Remington released their 7mm and .300 short action ultra magnums in the same year and a year later, Winchester released the 7mm and .270 WSM cartridges. Given that the mass and velocity make up bullet momentum and since there was very little difference in velocity between the cartridges and the .300 WM rounds have heavier bullets, it makes sense that they generate more momentum. We did see slightly higher sectional density numbers, on average for the .300 Win Mag and pretty significant differences in the momentum data with the edge going to the .300 Win Mag as well. Both are chambered in just about every hunting rifle made, including wonderfully affordable models like Mossberg's Patriot as demonstrated here. While we will not be graphing all of these rounds (that would be a nightmare for your eyes) we have calculated averages for both and will present those at the end of each section. While the .300 Win Mag overall has higher bullet energy, the differences are not too extreme. We think that most of you here reading this article would easily adjust to the increased recoil of the .300 Win Mag, but there might be some who could easily be thrown off by the kick. For the .300 Win Mag rounds, all of the them leave the muzzle with over 75lb/ft.s of momentum while all of the 7mm RM rounds are below the 70lb/ft.s mark. In the grand scheme of things, we don’t know if that is enough to sway you towards one cartridge or the other without taking into consideration other performance specs. We kept both of these cartridges with being fired with a 9lb firearm, and the powder loads were selected from load data. It is important to remember when looking at these averages, that they are just averages and you’re not shooting averages out the barrel. Ballistics comparison video between the 7mm Remington Magnum vs the 300 Winchester Magnum. Caliber: Bullet Weight: Overall Cartridge Length: Muzzle Velocity: Trajectory at 300 yds(100yds zero) Muzzle Energy(Ft. All Rights Reserved, Now, you 300 Weatherby Mag. That’s a difference of 478ft.lb. Latest. Sight Height (in) Must be a number greater than 0. We also hope that you have come to the same conclusion as we have after researching these two cartridges. Neck: 8.0mm 5. We put 3 popular cartridges to a head-to-head-to-head test. vs. .28 Nosler vs. 7mm RUM. BTHP 80289 2960 2697 2449 2215 1993 1786 1323 1098 906 741 600 482 -1 517 0-7 -22 -454 M 223 Rem 73 gr. With two cartridges that have the potential and the reputation for long range shooting, we wanted to also look at how long these cartridges can stay in supersonic flight. The first thing that jumped out at us as we looked at this data is that unlike the recoil, there is not a cartridge that has an overall greater amount of velocity. Moment is simply how well an object in motion will stay in motion. Comparing the .270 with the 7mm Remington magnum is like comparing grits and white cornmeal. Either will neatly terminate deer, sheep, elk and larger game so long at the shooter delivers the right bullet to the right spot. And that is not to say that the 7mm RM rounds are not going to penetrate well. Now, you 300 Weatherby Mag. While this cartridge has been and is still used in sharp shooting corners of the military, the majority of its action is found in the hunting world. Heck, one person’s results can be different from day to day. You will find these tables at the end of each section throughout the article. Receive our newsletter with the best articles covering guides, guns & gear. To do this, we have selected five popular rounds from each cartridge that include several different bullet weights and intended applications. The 7mm WSM d… We hope that this cartridge comparison of the 7mm Rem Mag vs .300 Win Mag has given you an unbiased look at some of the ballistic and other performance properties of these two rounds. With these two cartridges, we see fairly similar limits for supersonic flight though the 7mm RM rounds have, on average, 36 more yards of supersonic speed. The ballistic coefficient is derived from an equation that includes input variables from specific cartridge specifications including bullet dimensions and velocity. While we will examine it as a standalone performance category, velocity has its hand in just about all other performance specs of a cartridge. In the table below I used the term "mid-range trajectory," abbreviated "MRT." We do know what there is a lot of range in the limits for both cartridges. In the simplest explanation possible, the ballistic coefficient gives you an idea of how well a bullet is streamlined and how well it can overcome air resistance. Closing Comments The 7mm WSM will likely remain popular for many years due to its ability to be housed in short, lightweight rifles. 7mm Rem Mag vs 300 Win Mag Conclusion. Mag. When the bullet impacts the target, this kinetic energy is transferred to the surrounding tissue and organs causing massive damage. You might have more options for flat shooting rounds for the 7mm RM but be aware that there are .300 WM rounds that can easily compete for flat trajectory. It is important to make clear that we are looking at recoil energy and not the actual kick or felt recoil, though increased recoil energy for one round over another will often translate to increased felt recoil of the same round. Some of our reasons for selecting this round is the terminal ballistics and the stopping power. When a bullet falls below this speed barrier, its slight is less stable than it initially was and environmental factors begin to have more noticeable influence on the round. This is more than enough velocity to get proper terminal ballistics for these rounds but keep in mind some of these are not intended for hunting purposes. The .300 Win Mag, on average, is generating around five ft.lb more recoil energy than the 7mm RM rounds and if you look at the individual rounds (not shown) they tend to group pretty tightly by cartridge type though there are some outliers for both cartridges as is often the case. 14.07 fps                              24.6 foot-pounds, 300 Win. BONUS OFFER: Get your 500 Page Ammo Comparison Handbook (worth $43) for FREE right into your inbox. Because of this, it will be interesting to see how these two cartridges stack up in various performance categories. When you know when these effects start occurring, you can adjust accordingly or go with a round that might give you more flight time at these speeds. When comparing to other popular hunting rounds, including other 30-cal bullets the .300 Win Mag is a newcomer. To engage this 7mm RM vs. 300 WM argument you have to be willing to pick at nits because, bottom line, both cartridges (and many other magnums like them) are winners. Let’s take a look at the averages of the full data sets. Parent Case: .375 H&H Magnum 2. Base: 13.0 mm .30-06 Springfield (7.62×63mm) 1. Stopping power is extremely important in a hunter’s decision for a cartridge. Not only is it because we don’t want the animal to get away and we don’t want to have to track it for miles, but we also respect the animals a great deal and letting one get away wounded is the last thing we want. BCs are also important in the trajectories of bullets. Instead, your advantage is going to be achieved by selecting from individual rounds and both the .300 WM and the 7mm RM have rounds with phenomenal trajectories. Let’s step out and take a look at the trajectories of the 7mm Rem Mag vs .300 Win Mag at increased distances (Graph 6). If your favorite round is not on the list, it’s not because we don’t think it’s a round worthy to take in the field. The .300 Norma Magnum is also another cartridge which offers some excellent long-range ballistics, and has grabbed the attention of the U.S. Army. Both the 7mm Rem Mag and the .300 Win Mag were designed from the same parent casing, but their final dimensions do have some very significant differences. In this next section, we are going to look at several sub-categories of stopping power. We really like the lighter 7mm Rem Mag rounds for these game animals. Please note, the following information reflects the estimated average ballistics for each caliber and does not pertain to a particular manufact With the larger sample size, we see the same trend that we saw above. We have also added an additional 1,000 yard marker for those who like to push their limits. It is also not uncommon to see slightly different performance firing these rounds from your rifle compared to computer generated data. November 25, 2019. The 7mm Rem Mag, on the other hand, is using lighter bullets. The 7mm is a belted cartridge and the 300wsm is a rimmed cartridge. Each cartridge is today the most popular magnum … Both of these combined, barring bullet design, indicate that the .300 Win Mag should have better penetration potential. Both are loaded with a wide variety of some of the the best bullets in the world and both are widely distributed and easily found. For others, the trend of the 7mm RM losing altitude at a slower rate than the .300 Win Mag as you increase the distance is very important. 7mm RM Federal Nosler Ballistic Tip Vital-Shok 150gr, 7mm RM Winchester Expedition Big Game Long Range 168gr, 7mm RM Nosler Trophy Grade AccuBond 140gr, 300 WM Federal Trophy Bonded Tip Vital-Shok 180gr, 300 WM Nosler Trophy Grade AccuBond Long Range 190gr, 300 WM Federal MatchKing BTHP Gold Medal 190gr, Nosler Trophy Grade AccuBond Long Range 190gr, Winchester Deer Season Copper Extreme Point 150gr, Winchester Expedition Big Game AccuBond CT 180gr, Winchester Expedition Big Game Long Range 168gr, Barnes VOR-TX TSX Hollow Point Boat Tail 160gr, Winchester Power Max Bonded Protected Hollow Point 150gr, Federal Power-Shok Jacketed Soft Point 150gr, Remington Core-Lokt Pointed Soft Point 175gr, Hornady American Whitetail InterLock SP 139gr, Nosler Custom Ammunition Partition Spitzer 150gr. It's not because of the cartridge. Look on any forum discussing shooting and the ballistics of a certain cartridge, and you are bound to see the topic of trajectories pop up. Overall, both rounds are really overkill for these game animals stopping power wise, but that extra range can be a game changer. The .300 Win Mag came into production by Winchester in 1963. The sectional density correlates with the amount of penetration a bullet will have on the target, and since we are not looking at bullet types and designs in this article, we think the SD is a good means of comparison for two cartridges. Higher BC rounds tend to have flatter trajectories. Ammo Description Velocity (fps) Energy (ft/lb) Trajectory Tables (inches) CARTRIDGE BULLET ITEM # MUZ 100 yd 200 yd 300 yd 400 yd 500 yd MUZ 100 yd 200 yd 300 yd 400 yd 500 yd MUZ 100 yd 200 yd 300 yd 400 yd 500 yd M 223 Rem 68 gr. G1 Ballistic Coefficient Must be between 0.001 and 1.0. We don’t think there is any difference in availability between the two, though there is less compared to other popular hunting rounds. Let’s take a look at the bullet energies (ft.lb) of the ten selected rounds from the muzzle out to 500 yards (Graph 7). While the .300 Win Mag has a higher case capacity and can take higher pressures, it also must send heavier grain bullets down range while maintaining necessary terminal ballistics. In this section, we will take a look at several ballistic categories including the velocity, the ballistic coefficient, as well as the short and long range trajectory of the 7mm Rem Mag vs .300 Win Mag. We have listed the average cutoff for supersonic flight in the table below. The 300 win mag … That changes the ballistics significantly in favor of the 7mm and might alter your plans. And if you need some extra power at short range the differences are nowhere enough to make you decide against the .300 Win Mag. Of these, 140 grain, 150 grain, 160 grain, and 175 grain loads are by far the most common. 7mm Magnum Showdown: 7mm Rem. Due to the fact that the 7mm WSM duplicates the performance of the .280 Remington while being very similar to the 7mm Remington Magnum, the reader is directed to these texts for bullet performance. Mag. As with the velocity, we see a lot of variation in BCs throughout all ten selected rounds and within each cartridge class. by a nose. Both cartridges have their rounds with heavier bullets and subsequent higher SDs. If you’re a hunter, competitor, or just enjoy shooting, understanding how your cartridge of choice behaves in flight and understanding its limitations is critical to your level of success. This cartridge was able to match and even excel in several ballistic categories compared to the .30-06, one of the most popular long range, big game cartridges at the time, but the 7mm rem came with much more tolerable recoil when compared to other magnum cartridges on the market. per sec. We used a ballistics calculator to generate the recoil energy (ft.lb) generated from firing each of the ten rounds that we have chosen for comparison. Size matters, so let’s stick to the two older magnums. Just as with the smaller set of rounds we just looked at, these two cartridges are nearly identical in their trajectories. The .300 Win Mag can be packed with large amounts of powder giving it a huge advantage in velocity. A rule of thumb that a lot of shooters go by is that 20ft.lb of recoil energy can influence the shot and even be uncomfortable for some shooters. 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. Mag. Bullet: 7.8 mm 4. We are interested in how long these rounds can maintain supersonic flight because it influences the calculations you will have to make to be accurate with long range shots. On average, the 7mm Rem Mag rounds have a SD of .279 while the .300 Win Mag rounds have an average SD of .289, a hundredth of a difference. Complete 7mm Remington Magnum Winchester ammunition ballistics Chart. Sniper Country is reader-supported. In a nutshell, here’s why: given equal rifle mass, optimum bullet Ballistic Coefficients and Muzzle Velocities in each caliber, the 7mm RM will shoot flatter, drift less and recoil with less brain jarring recoil than the 300 WM. For two cartridges that overlap in so many applications, it is easy to get on the path of trying to determine which cartridge is better. We also do not see any overlap between rounds of different cartridges until the 500 yard mark, and even then, it is only the highest performing 7mm RM round that matches the lowest performing .300 WM round. Again, with the larger set of rounds, we see the sameresults from earlier. Before we launch into the short and long range trajectories, we wanted to step back and show the trajectory of two similar rounds, one for each cartridge, that uses the same bullet design and similar weights, as these cartridges allow, that come from the same manufacturer. In our opinion, both sides of the 7mm Rem Mag vs. 300 Win Mag fence offers comfortable, efficient ‘seating’! Below we have listed our ten selections to be used in this article. The 7mm Rem Mag had on average slightly higher BCs and slightly flatter trajectories out past 500 yards than the .300 WM rounds, but as we stated during those discussions, there are rounds for both that perform better than others. With two bullets, each with a .300” diameter with one weighing 100gr and the second 150gr, the 150gr is going to have a higher sectional density and deeper penetration. There are several factors that influence the amount of penetration that is going to occur, other than the type of animal. While some of you might have no interest in the history of either of these rounds, we not only think it is interesting, but we think that if you have an idea of why these cartridges were designed and produced gives you a better understanding of their intended uses. We have to cut it off somewhere. If the round is not paired with the correct twist rate of the barrel, the bullet can be highly unstable in flight and become highly inaccurate. Latest. While this category was a little more clear cut when thinking about the difference between the cartridges as a whole, there are still instances where some of the 7mm Rem rounds produced KE around or above the average of the .300 WM rounds. For the 7mm Rem Mag rounds, we are big fans of the HSM Trophy Gold VLD Berger 168gr round. We first notice that the caliber of bullets that the casings will accept are different. For hunting purposes, shots out past 500 yards get pretty dicey so the 600 and 700-yard data points are not going to be as important to you as the .300 and 400 points. And though it is fine for looking at now, when making your final decision on a specific round, it is important that you take into account all of the factors. 15.64 fps                             30.4 foot-pounds. Most weights are within the 150-200 grain range, but there are several lighter and heavier rounds available. The following is a 500 yard 7mm Rem Magnum ballistic chart that was created using our free online ballistic calculator and details all aspects of the bullets trajectory from the millisecond it leaves the barrel until the time it reaches the 500 yd mark. UMC Handgun; Hog Hammer Handgun; HTP Copper Handgun; Subsonic; Performance WheelGun; High Terminal Performance (HTP) Ultimate Defense Compact Handgun Loads As we start top close out this comparison, let’s try to take the results we have found and start teasing apart certain applications of these cartridges might be better suited or maybe applications where you can’t go wrong with either. Unfortunately, there is no single measurement that is going to convey to us a cartridge’s stopping power, but there are several factors that influence stopping power such as bullet energy, penetration, and bullet expansion. Rifling Twist: 1:10 3. The following ammunition cartridge ballistics information and chart can be used to approximately compare .300 WSM Winchester Short Magnum vs 7mm-08 Remington ammo rounds. This way, you can have more data at your disposal if you are looking to make a decision, and it will also check our small sample group and help us confirm that the results we are seeing is accurate for the cartridges as a whole. That being said, unless you are a target shooter, you may not even notice the difference between the two. If you are planning to shoot factory ammunition only, check back here for Part Two of this cartridge comparison blog. In fact, the flattest shooting and steepest dropping round are both 7mm Rem Mag rounds. 300 Remington Ultra Magnum Load Data; 7.62x51mm NATO Load Data; 8x57mm JS Mauser Load Data; 8mm-06 Load Data; 325 Winchester Short Magnum (WSM) Load Data; 8mm Remington Magnum Load Data ; 338 Federal Load Data; 338-06 A-Square Load Data; 338 Winchester Magnum Load Data; 330 Dakota Load Data; 340 Weatherby Magnum Load Data; 338 Remington Ultra Magnum Load Data; 338 Lapua Magnum … Hunting. 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. You might see slower velocities as well as changes in bullet energy and trajectory. When we bring in the extra rounds, we still observe the greater kinetic energy with the .300 Win Mag rounds at each yard marker along the bullet’s flight. Environmental Status. 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