Regarding recoil, the .338 LM cartridge produces quite a bit more recoil than the .300 Win Mag. As with most cartridge comparisons, a lot of the decision eventually comes to what you are comfortable using and what you are confident in using. Glad you enjoyed the article Ian! It is between the 338LM and the 338Win Mag. Thanks for pointing out my typo. It is between the 338LM and the 338Win Mag. From just the aspect of factory loads, the .300 Win Mag gives a slightly flatter trajectory, though there are rounds for both cartridges that behave very similarly in long range trajectory. All other things being equal, a bigger bullet will make a bigger hole, cause more tissue damage, and result in more blood loss. While there is some overlap in the applications of these rounds, there are also going to be certain shooting situations where one might be better suited than the other. When averaging the rounds between the two cartridges, there is a .05 difference in SD between the .300 Win Mag vs .338 Lapua Magnum. A couple hundred fps faster with the heavy 30 Cal bullets which given their bc puts it right in the range of energy while flatter shooting than even the LM until you get to ranges people do not hunt game at except very rarely 1200+. Better ballistics with the new ultra heavy for caliber bullets and lower recoil / ammo cost. Both cartridges are also belted magnums with the same .532″ rim diameter and the same SAAMI maximum average pressure of 64,000psi. If you seeking special discount you'll need to searching when special time come or holidays. Specifically, the designers of the .338 Lapua were trying to build a very accurate and flat shooting round that was more powerful and had a longer effective range than the 7.62x51mm NATO, but did not require as large or heavy of a rifle as the .50 BMG. And while a lot of people associate these rounds with longer distance shots, we have to remember that these are hunting rounds as well, and with hunting, shots can present themselves at short range at any time. Buy some of the best .300 Win Mag hunting ammo here. There is no single measurement that is going to provide a perfect indicator of a cartridge’s stopping power to us. Go with the .338 Lapua. It’s also inherently more accurate and efficient. While the .300 Win Mag and the .338 Win Mag were both developed for big game hunting, the .338 Lapua was originally designed as a long range sniper round for military use. Finally, the .300 Win Mag utilizes .308″ bullets while the .338 Win Mag and .338 Lapua both shoot larger .338″ bullets. The averages from the muzzle might give a slight advantage to the .300 Win Mag rounds, but we are only talking about 200 extra fps, and this trend remains similar out to 500 yards though the difference falls to around 60fps of difference. The problem stems from a number of variables that go into accuracy that are hard to account for in the data. The author analyzed six .338 caliber magnum cartridges (.338 Winchester Magnum, .340 Weatherby, .338-378 Weatherby, .338 Remington Ultra Mag., 33 Nosler, and .338 Lapua) for trajectory, effective range, and recoil with modern ballistic software available free online from We always have a bit of an issue when talking about accuracy for two cartridges. The 338 Lapua has nearly twice as much recoil energy though. We enjoy the 190gr Federal MatchKing BTHP Gold Medal round for this application. From just a couple dozen rounds, the .338 LM cartridges might be more fatiguing to you than the .300 Win Mag though both can be uncomfortable when used by less experienced users. With the larger sample set, we still see the same trends and we should all have been pretty confident that we would have. The SD and velocity paired with the controlled expansion of the heavy 300gr AccuBond bullet make this a deadly round for big game at a wide selection of ranges. The comparison between a .300 Win Mag vs .30-06 cartridge involves considering the following factors – 1. The .338 Winchester falls more or less in the middle: it has less recoil and retains less kinetic energy than the .338 Lapua, but more recoil and more kinetic energy at all ranges than the .300 Win Mag. As you can assume, this is a hard hitting round, but it does provide the performance to fill certain shooting niches. So while the average indicates that the .300 Win Mag is the flatter shooting round, we think some more advanced statistics and data would be needed to say so for certain. Receive our newsletter with the best articles covering guides, guns & gear. At this point, all of the .300 Win Mag rounds show flatter trajectory than the .338 LM rounds with the exception of the .338 LM Federal MatchKing BTHP Gold Medal 250gr round. As we’ll discuss in detail shortly, the Lapua also utilizes very aerodynamic bullets that retain energy and resist wind drift exceptionally well. The .338 LM rounds are a larger caliber than the .300 Win Mag and have a slightly longer case and overall length. There are also some very important differences between the three cartridges when it comes to bullet size. It’s not a hunting rifle. Overall, when looking strictly from an angle of the .300 Win Mag vs .338 Lapua Magnum, there is not a huge difference in the long range trajectory of these factory loads. With the same rifle weight, the .338 LM generates nearly double the amount of recoil energy as the .300 Win Mag. The .338 Winchester and .338 Lapua both really lag behind the .300 Win Mag in popularity, but neither is rare. This beast provides more initial velocity than any of the previous cartridges discussed, and has proven to be an outstanding elk cartridge. At the 200 yard mark, all of the rounds are tightly clustered around the -3” mark though averages give a slight (.5”) advantage to the .300 Win Mag rounds. i just picked up a s=Sako m995 in .338 lapua. With that, there are situations where one cartridge might be a better option than others. good read! The increased interest in the .338 LM in civilian circuits has resulted in more round options though still limited compared to other competition and hunting rounds. Cheap 300 Win Mag Vs 308 Vs 338 Lapua And 338 Lapua Ballistics Coefficient 300 Wi However, while the .300 and .338 Win Mag will both fit in a standard/long action rifle, the .338 Lapua Magnum requires a much longer rifle action. The MRAD also uses a double stacked detachable magazine. And receive our newsletter with the best articles covering guides, guns & gear. These are factory loads, and the performance data we are looking at comes from the manufacturer’s website and well trusted and accurate ballistic performance calculators. Some hunters have issue with the recoil for this sized game since just as effective rounds can take deer with much less kick. Basically where unintended brown bear moose run ins are high. New brass in 2018 by Lapua – the .300 Norma Magnum case A recent development based on the .338 Norma Magnum necked down to .30 caliber, the .300 Norma Magnum was adopted as the US military’s Advanced Sniper Cartridge “for extra long ranges beyond 1 500 meters”. Even so, the .338 LM rounds are significantly more expensive than the .300 Win Mag rounds. As illustrated in the chart,.300 Weatherby Magnum rounds - on average - achieve a velocity of about 3230 feet per second (fps) while.338 Lapua Magnum rounds travel at a velocity of 2930 fps. If we look at individual rounds and disregard the cartridge, the four rounds with the flattest trajectory are a mix of two .300 Win Mag and two .338 LM rounds. All other things equal, a heavier projectile of a given caliber will be longer and therefore have a higher sectional density and consequently penetrate deeper than projectiles with a lower mass and sectional density. Around that same time, the “Magnum Era” also began in earnest when Winchester rolled out a line of new belted magnum cartridges utilizing a modified .375 H&H case. The .338LM rounds lost momentum at a slightly lower rate than the .300 Win Mag rounds. Hornady .300 PRC (left) and .300 RUM.300 Remington Ultra Mag vs. Hornady .300 PRC. I own both. Calculations were corrected to standard temperature (59F/15C) and … Shop for Low Price 300 Win Ultra Mag Vs 338 Lapua And 338 Lapua Vs 300 Win Mag Ballistics Trajectory . Remington produced the 300 Win Mag in 1999 and this is also the first cartridge of the 30-caliber We know accuracy is important and in the end we think when looking at the .300 Win Mag vs .338 Lapua Magnum, both cartridges can be extremely accurate when used with the right platform and in the right hands. 300 Win Mag Vs 338 Lapua. This means I will earn a small commission (at no extra cost to you) if you make a purchase. Others, not so much. For cartridge comparisons, we are going to look at the energy and the penetration which includes the sectional density and the bullet momentum. We have also provided all of the average tables that have been seen throughout the article in this section for easier viewing as we move through the applications of these two cartridges. The.338 Remington Ultra Magnum has a similar case capacity as the.338 Lapua Magnum and somewhat lower than that of the.338-378 Weatherby Magnum. My dad's friend hunts with a .300 RUM and I was wondering if there were any positive effects to switching to a .338 Lapua. Just returned from an African hunt and used a .338 with Barnes Triple shock bullets loaded with 210 grains. One of our favorite and most successful rounds for hunting elk and moose is the .300 WM Nosler Trophy Grade AccuBond Long Range 190gr. I live in the country and was looking for an interesting caliber to try. 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. The .300 Win Mag vs .338 Lapua Magnum is an interesting comparison, and we think provides some interesting points of discussion. We are a little more limited for .338 LM factory loads but we compiled the data for as many as we could. A couple things to point out about all of them, relative to cartridges not mentioned in this article. Book an outstanding African hunting safari here. They also are large enough cartridges that with proper expansion you are going to have enough of a deep wound creation for a quick kill with a properly placed shot. From this example, we see that the .338 LM round is showing an overall flatter trajectory than the .300 Win Mag round with the biggest difference being 10″ at the 500-yard mark. A recent development based on the .338 Norma Magnum necked down to .30 caliber, the .300 Norma Magnum was adopted as the US military’s Advanced Sniper Cartridge - for extra long ranges beyond 1 500 meters. And that’s the goal of this article; we are not looking to claim one of these cartridges is better than the other. As you can see, this projectile is over a millimeter larger in diameter, and the cartridge is a good big longer as well. We have compiled the velocity data from the ten rounds from the manufacturer’s website, and when we look at the velocity (ft/s) (Graph 2) from the muzzle to out to 500 yards, we see some interesting points of discussion. Case capacities were obtained from Nosler (here, here, and here). Therefore, the only time a 338 RUM would be at a disadvantage over a 338 Lapua is for the 300 Grain bullet. Corey I am with you on the same page. The .300 Winchester Magnum is by far the most popular cartridge of the three and it’s consistently among the best selling rifle cartridges in the United States each year. The chart below compares how much a 10 mile per hour crosswind impacts those same .300 Win Mag, .338 Win Mag, and .338 Lapua Mag loads out to 500 yards.Once again, all three cartridges perform very well, but the .338 Lapua has the edge here. What we are saying is that the differences in performance here will translate to differences in performance for you when using the same firearms, so the comparisons are still valid in our opinion. Overall, there are are significant differences between the amount of momentum that we see between these two cartridges. There is definitely some variation between cartridge to cartridge as the .338 LM rounds vary from between .431 to .789. It also has one of the flattest trajectories of all the selected rounds we looked at and the highest BC of all the .300 Win Mag rounds. Responsible hunters will be sure that the shot they are taking and the cartridge they are using is going to dispatch an animal quickly and humanely. Formally introduced by Lapua Limited in 1987, the designers of the .338 Lapua Magnum accomplished those goals by utilizing a new case based on the .416 Rigby. In the table below, we have listed the averages for the expanded round list. Depending on the specific load being compared, the .300 Win Mag has either the flattest or the second flattest trajectory (behind the .338 Lapua). Are you more sensitive to recoil? I’m just afraid it will be a year until we see the Berger 245’s Really hoping the … .300 Win Mag projectiles are 7.8mm in diameter, and the cartridge is 3.34 inches long. We have also kept the powder loads constant for each cartridge and used a conservative number since we are dealing with factory loads. Below, you will find the averages for recoil energy between these two cartridges. We will come back to all of this in the application section, but we do want to note that in a lot of cases, either of these cartridges have more than enough momentum to drive a round through the target. Make sure you follow The Big Game Hunting Blog on Facebook, Instagram, Twitter, andYouTube. This round has a muzzle energy of 4, and still carries nearly 3, of energy at the 300-yard mark and 2, at 500 yards. However, the .338 Lapua clearly has the fiercest recoil of the bunch: an astounding 85% more free recoil energy than the .300 Win Mag, even when used in a slightly heavier rifle! Again, depending on the exact load in question, the .338 Win Mag either has the most arching trajectory, or the second most arching trajectory (either ahead or behind the .338 Lapua). Rare and Great! The results are pretty easy to interpret. Both are also able to withstand large amounts of pressure when the powder is ignited, which is needed to push the heavier bullets down range with the proper terminal performances. Just look at the amount of powder that can be loaded into the .300 Win Mag vs .338 Lapua Magnum. The .338 Win Mag is a little more expensive, but .338 Lapua factory ammo is by far the most expensive of the bunch and can cost twice as much (or more) than .300 Win Mag ammo. .338 Remington Ultra Magnum history and performance. While most experienced hunters or competitive shooters are not too concerned with the amount of recoil and we think you can become accustomed to most recoil over time, others still might be, and those with less experience are concerned. However, it’s a bit too much of a good thing. Well, as heavy as .338 Lapua rifles are, carrying one afield is certainly much easier than carrying a Barrett .50 cal that weighs 25 pounds (or more) and there are plenty hunters who take game with the Lapua each year. The ammo cost is pretty insane. If you’re driving out to a spot to sit, it doesn’t matter, but for hunting situations where you might be logging a couple of miles, that extra 15lbs is going to be fatiguing. As an example, let’s take two different bullets of the same design traveling at the same velocity. What is different is that with more rounds, the difference between the averages has gotten narrower by several inches. It influences recoil, it influences trajectory, and it even influences stopping power of the bullet, and that is only the categories that we are looking at specifically in this article. It’s going to be tough hauling around a 12-15lb weapon in the field. The reality of dealing with a such a powerful cartridge that was originally designed for extreme long range performance presents the user with a dilemma: do you want to lug a really big and heavy rifle weighing upwards of 15 pounds with a 26-28″ barrel through the woods or up a mountain? He used that rifle and cartridge to kill two Taliban machine-gunners 2,707 yards (2,475 meters) away in Afghanistan’s Helmand Province during 2009. Do you want the cartridge best suited for target shooting out to 1,500 yards or so in a precision rifle? 338 Edge (.338/300 Ultra Mag, .338 Ultra Cat) is a Wildcat rifle cartridge based on the .300 Remington Ultra Magnum round necked up to accept 0.338" diameter bullets. With that, the .338 LM rounds have the advantage when it comes to hand loading as they can be loaded slightly hotter and the heavier bullet and higher BC might sway you towards it as your long range cartridge of choice, but we could easily make the argument for the .300 Win Mag as well. Of the three, I’d say to go with the .300 Win Mag since ammo is generally cheaper and it has less recoil than the others. John. This is because the energy driving the bullet is localized to a smaller area effectively pushing it further with less resistance than a larger diameter bullet would impose. Nun gibt es die Präzisionswaffe auch in den angesagten Trend-Kalibern .300 Norma Magnum und 6,5 Creedmoor. Of course, the difference is less than three inches at the 400 yard mark and less than that at all of the previous yard markers. We also saw that the difference in velocity was not too much. Stopping power is critical, especially to hunters for several reasons. What if you hunt in Canada or Alaska and need a heavy hitting cartridge just in case you find yourself on the wrong end of a grizzly/brown bear attack? The ballistics chart below compares the trajectory of Hornady Precision Hunter and Winchester Expedition Big Game and factory loads for each cartridge. Those cartridges utilized a .375 H&H Magnum case necked down (or up, in the case of the .458 Win Mag) and shortened from 2.85″ to 2.5″ long. Low recoil so you can spot for yourself. BTW that 2,400 meter shot taken with the 338 Lapua only has enough dope on the S&B PMII scope to get out to 1800m of drop with the standard Brit sniping load. Too hot of a round can be dangerous due to extreme pressures and if the round is not paired with the correct twist rate of the barrel, the bullet can be highly unstable in flight. Additionally, the .338 Lapua also has an advantage in bullet sectional density compared to both other cartridges. There are exceptions though, like the Savage 110 Long Range Hunter and the aforementioned Weatherby Mark V, which are much lighter and not quite as expensive as the others. For tactical shooting, especially if you have a muzzle brake then 190gr bullet on top of a .300 Win Mag or 250 to 300gr bullet on top of a .338 Lapua Mag is a good choice. Like anything, you’re favorite round might be completely different from what we outline here and as long as its getting the job done and your happy with its performance, go with it. The .300 Win. at 82lb/ft.s. The amount of stopping power that is thought to bring down game effectively is debatable and shot placement is a key component to this baseline as well. The .338 Lapua Magnum has a much shorter history than the .330 Win Mag. The 338 Lapua does best with 250 to 270 gr bullets, although the 300 gr SMK is a serious contender for long range accuracy. That’s not to say that they start tumbling all over the place, but they are more susceptible to environmental factors which makes shots past this marker more difficult. Winchester picked up the gauntlet Remington had thrown down and responded the following year with the .300 Winchester Magnum (also known as the .300 Win Mag or  .300 WM). Below are the averages for the two cartridge’s sectional density. Im looking at the Christensen Arms MPR in 338 Lapua or the 300 PRC. So how many trips to the range before you become proficient and consistent, given those kinds of “restrictions” on shooting? 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