Scroll down or click the appropriate link below to jump to the specific comparison you want to learn more about. Mag. The .270 Win has a relatively flat trajectory itself, but the 270 WSM had a small, but definite advantage in this area. What about accuracy of the 300 Win Mag vs 300 WSM? The 325 WSM also has a slightly higher maximum SAAMI pressure than the .338 Winchester Magnum (65,000psi vs 64,000psi).Unlike all the other comparisons in this article, the 325 WSM and .338 Win Mag use different sized bullets. Even though you’re probably not giving up any magazine capacity due to the fat and stubby design of the 300 WSM cartridge, those same traits (along with the cartridge’s very steep shoulder angle) can sometimes present feeding problems. Before we get started, I have an administrative note: Some of the links below are affiliate links. For those reasons, sporting goods stores usually carry ammunition for both cartridges. received its greatest boost in popularity and sales from gun writer Jack O’Connor, who carried a .270 around the globe. They’re both great cartridges, but I’d probably lean towards the .270 Winchester. Additionally, the 7mm Remington Magnum is a traditional belted magnum while the 7mm WSM has a rebated rim and no belt. Comments are turned off. The same goes for game like mountain goat, bighorn sheep, Himalayan Tahr, and chamois. If you prefer a shorter, potentially lighter rifle, that’s slightly faster cycling and easier to carry, but still has magnum performance, then go with the 300 WSM. Just like with the 7mm WSM vs 7mm Rem Mag and 300 WSM vs 300 Win Mag, even though the 325 WSM uses a case with a larger diameter, the .338 Win Mag itself has a relatively large diameter case and is significantly longer. So, depending on the exact rifle model in question, it’s likely that one chambered in 325 WSM will be somewhat shorter and handier as well as potentially a little lighter. Additionally, the .338 Winchester Magnum is a traditional belted magnum while the 325 WSM has a rebated rim and no belt. ©2020 Outdoor Sportsman Group. Ok let’s give them the benefit of the doubt and say they like availability and reliable feeding. Make sure you subscribe to The Big Game Hunting Podcast and follow The Big Game Hunting Blog on Facebook, Instagram, Twitter, and YouTube. Though I doubt that a well placed shot on an animal with an extra 200 feet per second of velocity or 250 foot pounds of energy will make a big difference, it won’t necessarily hurt either and I can see why someone would want that extra power, especially when hunting game like elk and moose. .300 Win Mag ammo is probably a little bit easier to find, it’s not by much and you’re likely to find a good selection of ammo for both cartridges regardless of where you go. It’s just that it doesn’t offer a significant improvement in power over the 325 WSM at close range, but still has more recoil. Absolutely. It’s also possible to find other rifles where there’s an even bigger difference in size and weight between the two cartridges. This results in a little bit less recoil. Or was the Winchester Short Magnum line of cartridges just a scheme by Winchester to sell new rifles that’s cleverly disguised by a bunch of marketing hype? Just because it can be done does not mean it makes sense, despite what you might read in advertising copy. The Winchester Short Mags all undoubtedly offer at least some advantages to the shooter that, if nothing else, can potentially help improve his or her confidence and maximize his or her shooting abilities. The data used to compare the trajectory and wind drift of the cartridges was obtained from Hornady (here, here, here and here), Federal (here, here, here, here, here, and here), Nosler (here), and Winchester (here). I personally prefer the .300 Win Mag, but you should also know that my affinity for that cartridge is due in part to my preference for Ruger rifles (which are not currently manufactured in any WSM cartridge). Is this really the case? This is a benefit that should not be overlooked either. For instance, the 325 WSM has 99% of the energy of the .338 WSM at the muzzle, 94% at 200 yards, and 86% of the energy of the .338 Win Mag at 500 yards. It also carries a tad more energy out to longer range and is capable of excellent accuracy. For those reasons, while the .338 Win Mag can generally hold a little more powder, the two cartridges actually have similar case capacities (depending on the manufacturer of course). However, both cartridges are capable of excellent accuracy in the right hands and will get the job done under most circumstances if the shooter is up to the task. What about accuracy of the 270 Winchester vs 270 WSM? This is one of the tougher aspects of using the 325 WSM: there’s not a gigantic variety of factory ammo or a large number of bullet choices for hand loaders to choose from. However, the 300 WSM could have an advantage on those sort of hunts because it’s available a smaller and easier to carry rifle. Mag. Like I said, they’re all well designed and very capable hunting cartridges. In fact, those two cartridges are likely among the Top 10 best … It is more available than the .270 Weatherby Magnum has ever been. The 300 WSM and 325 WSM also have the benefit of doing all of the above with a modest decrease in recoil compared to the .300 Win Mag and .338 Win Mag while the 270 WSM offers a definite improvement in velocity over the .270 Winchester. Are you just itching to take a rifle chambered in one of these cartridges on a hunt? By David E. Petzal. The 270 WSM and 325 WSM are more of a mixed bag, but offer advantages to hunters in certain aspects as well and this is reflected in their popularity in particular segments of the hunting community as a whole. A.435 B.C. That’s a pretty major step down in recoil, especially when you take into account that you’re getting almost the same amount of performance out to 200-300 yards. with advertised prices as low as a dollar a round for quality ammunition. Most manufacturers produces rifles chambered in .338 Win Mag, so it’s not too difficult to find a good rifle in that cartridge. However, standard/long actions and short actions are two of the most common and are most relevant to the development of the Winchester Short Magnum line of cartridges. That’s not to say that the .338 Win Mag won’t work for that sort of hunting because it certainly will. Rifles in both cartridges are also extremely common. The two Hornady loads fired the same bullet with a scant 30 fps of difference between them, with the .300 Win Mag having a tiny velocity edge. The 270 WSM is one of the few calibers that actually has a ballistic advantage over the standard caliber of its own. Is it significantly more accurate than the .338 Winchester Magnum? After all, fans of the Winchester Short Magnum cartridges like to point out the benefits of the shorter and fatter powder column. Originally chambered in the Model 54, the .270 Win. However, the .270 Win.’s long case body feeds easily in most rifles while the WSM has a reputation for being more finicky. However, 200 grain, 225 grain, and 250 grain bullet weights are most common for .338 Win Mag factory ammo. The last of these cartridges, the .325 WSM, was introduced in 2005. But at the opposite-and-equal-reaction end of that recoil is the bullet carrying 3,850 ft-lbs kinetic energy. For example, so called “magnum actions” are even longer than standard actions. Both cartridges are also well suited for hand loaders and reloading components for the .300 Win Mag and 300 WSM are widely available. However, regardless of the firearm in question, rifles chambered in .270 Winchester can usually hold an extra round or two in the magazine since that cartridge has a slimmer case. With this in mind, designers at Winchester Repeating Arms elected to build a line of cartridges that could fit in a short length action with the goal of achieving similar performance to popular standard length cartridges. Like all 7mms, they can fire bullets as light as 100-grains and as heavy as 180-grains. While rifles like the Winchester Model 70 were produced in that chambering for several years, I’m not aware of any rifles currently manufactured in 7mm WSM. The WSM cases all have a .535″ rebated rim that’s compatible with a standard magnum size bolt face. First, the .270 Winchester is significantly longer. After all we wouldn’t want to hurt someone’s sensitive feelings. As fans of the Winchester Short Magnum cartridges like to point out, the 325 Winchester Short Magnum likely does gain some accuracy benefit from its shorter powder column. This means you have the option to read your magazine on most popular phones and tablets. Probably not. In that same vein, those fat, stubby 7mm WSM cartridges with their very steep shoulder angle can sometimes present feeding problems. As illustrated in the chart, .270 WSM Winchester Short Magnum rounds - on average - achieve a velocity of about 3240 feet per second (fps) while 7mm-08 Remington rounds travel at a velocity of 2830 fps. It’s a wonderful cartridge and there are plenty of quality ammo and rifle choices for you. So can 7mm RM cases. Both are wonderful for situations like hunting mule deer in Arizona or pronghorn in Wyoming. The 300 Winchester Short Magnum likely does gain some accuracy benefit from its shorter powder column. For this reason, this particular Model 70 in 270 WSM is actually longer (44″ vs 42.5″) and heavier (7.25 pounds vs 7 pounds) than the Model 70 in .270 Winchester. While rifles chambered in both cartridges are manufactured with both 22″ and 24″ barrels, the shorter 22″ barrel length is more common with the .270 Winchester and the longer 24″ barrel is more common with the 270 WSM. that. Please note, the following information reflects the estimated average ballistics for each caliber and does not pertain to a particular manufact Felt recoil will vary from shooter to shooter and rifle to rifle, but free recoil energy is still a useful way to compare cartridges. This specific model weighs 7.25 pounds when chambered in both 7mm WSM and 7mm Rem Mag. Inside of 200 yards no advantage. However, Winchester likely made an attempt at doing just that, but since the case is optimized for the 300 WSM, they probably were not getting the desired performance with a .338″ bullet and opted for a .323″ compromise instead. The 270 Winchester Short Magnum very likely does gain some accuracy benefit from its shorter powder column. Especially when hunting at shorter ranges (inside 200 yards), the 325 Winchester Short Magnum offers virtually the same performance as the .338 Win Mag, but with considerably less recoil. This means that it’s possible to build a short action rifle that’s a tiny bit shorter and lighter than an otherwise identical rifle with a standard length action. This makes sense since the 270 WSM is specifically designed to fit in a short action rifle instead of a standard length action like the .270 Winchester. Having said all that, when I recently compared the two, I ended up with the 7mmRM. 270 vs 280 vs 280 AI vs 7mm Rem Mag Ammo Selection. The .300 Winchester Magnum and 300 Winchester Short Magnum cartridges have essentially the same external ballistics. In that same vein, those fat, stubby 270 WSM cartridges with their very steep shoulder angle can sometimes present feeding problems. For the majority of hunters, the .338 Winchester Magnum is the more practical choice. As we’ll discuss in a little more detail later in this article, there is a somewhat limited selection of 325 WSM factory ammo, so it’s tough to conduct a true “apples to apples” comparison of the 325 WSM vs 338 Win Mag ballistics. However, the 270 WSM uses a heavier rifle and the .270 Winchester gets a slight edge when both are used in the same weight rifle. The .270 WSM is also capable of excellent accuracy but prefers slow-burning powders. However, don’t underestimate the importance of the greater variety, wider availability, and lower overall cost of .270 Winchester rifles and ammunition. or even 300 Win. They’re pretty much the same thing. Of these, 140 grain, 150 grain, 160 grain, and 175 grain loads are by far the most common. )Author Ron Spomer has shot most cartridges from 22 CB cap to 505 Gibbs and taken game with most of them. This is not an ironclad rule though and it’s sometimes possible to find rifles chambered in .338 Winchester Magnum that can accommodate another round or two compared to those chambered in 325 WSM. OSG's Lynn Burkhead and Ruger's Matt WIlson kick off SHOT Show 2018 by taking a look at the Ruger Predator. The two cartridges have a virtually identical trajectory out to 400 yards, but the less aerodynamic .338 bullet starts to drop off in performance at longer range compared to the 325 WSM. Both cartridges normally use bullets in 150-230 grain range. Since the 270 WSM uses a significantly shorter cartridge, you’d probably expect rifles in that cartridge to be shorter and lighter than rifles chambered in .270 Winchester. Use A Thermacell To Stop Bug Bites While Hunting & Camping. On the other hand, that’s not a gigantic advantage in favor of the 270 WSM either. Plus, the .270 WSM could poach from an already extensive lineup of .277 … The photo below does a great job of showing the differences in external dimensions between the 300 Winchester Magnum and the 300 Winchester Short Magnum. Additionally, while neither cartridge has a belt, the .270 Winchester uses a traditional rimless design while the 270 WSM has a rebated rim. When comparing two loads with identical bullets (Hornady’s 145-grain Precision Hunter ELD-X), the .270 WSM is 130 fps faster than the .270 Win. The generally better feeding and overall reliability of most 7mm Remington Magnum rifles is a big plus as well. However, they’re being measured against four of the most popular American centerfire rifle cartridges of all time in the .270 Winchester, 7mm Remington Magnum, .300 Winchester Magnum, and .338 Winchester Magnum, and that’s a tough hurdle to get over. On the other hand, the majority of 7mm WSM factory loads use bullets in the 140-162 grain range and 140, 150, and 162gr bullets are pretty common. Interestingly enough, a .323″ bullet diameter is exactly halfway between the .308″ bullets used by the 300 WSM and .300 Win Mag on one hand, and the .338″ bullets used by the .338 Win Mag on the other. So, while the rifle chambered in 300 WSM is not significantly lighter, it’s a tiny bit shorter and handier. Both are also capable of outstanding accuracy in the right hands. Basically, their stated goal was to give shooters and hunters all the benefits of a short action cartridge (like the .308 Winchester pictured below) with essentially the same external ballistics as comparable standard length cartridges (like the .270 Winchester cartridge in the photo below).So, how’d they do it? Violate this principle by, for example, chambering a lightweight, short action rifle for a powerful Magnum cartridge like the .300 WSM and the result will be a dramatic increase in kick. Specifically, 180 grain, 200 grain, and 220 grain bullets are most popular for 325 WSM factory ammo. Thanks for your support. with muzzle velocities of 3,100 and 2,970 fps, respectively. Book an incredible Africa hunting safari here. Though Winchester advertises a 24″ long barrel and a 7.25 pound overall weight for each cartridge in this particular Model 70, the rifle chambered in 325 WSM is 1/2″ shorter overall. Indeed, it’s even possible to see that much shot to shot variation within the same box of ammo for a particular cartridge. That’s not a gigantic difference, but it’s certainly not nothing either. October 28, 2013 Is the 7mm WSM capable of excellent accuracy? Both rifles in this case also have a 3 round magazine, so there’s no advantage there with either cartridge. Is the 270 WSM capable of excellent accuracy? The table below compares the recoil produced by two Nosler hand loads (available here and here) with ballistics roughly comparable to the 130gr loads above for those cartridges when fired from a Winchester Model 70 Featherweight rifle. Ballistics Comparison for 270 In short, this rifle and cartridge come about as close to being the mythical, all-round North American big game rig as the 270, 30-06, 7mm Rem. 1000yardstare. AFAICT, they fill the same niche and produce the same down-range results with the 140 grain bullets that I'm shooting from both of them. The .300 Winchester Magnum is extremely popular and is consistently among the Top 10 best selling rifle cartridges in the United States each year. I used the Hornady Ballistic calculator and ShootersCalculator.com to compare trajectory, wind drift, and recoil for the cartridges. On paper, the Winchester Short Magnums are very closely matched with their standard length cousins. more energy at that range. I was most always hunting Deer when the Elk showed up. So with that said, there’s absolutely nothing wrong with the 300 WSM either I understand why other hunters prefer the 300 WSM. Both will work exceptionally well on deer sized game out to several hundred yards. Maybe, but I doubt that it’s a big enough difference to really matter. However, while those that may well contribute to better accuracy, there are many other factors that influence accuracy to a much larger degree. (Interestingly, this seems to matter minimally to buck deer. But, even though the 300 Winchester Magnum does have a belted case (which the 300 WSM lacks), the 300 Win Mag generally has a reputation for pretty reliable feeding in most rifles. The recoil of some hard hitting cartridges. This is an incredibly small practical difference. Overall, the .338 AccuBond load is the best here with the 325 WSM AccuBond coming in a relatively close second. The 7mm Remington Magnum is one of the most popular centerfire rifle cartridges in North America and is likely among the Top 10 best selling rifle cartridges in the United States. At the same time, the lighter recoil and flatter trajectory of the 325 WSM give it a bit of a leg up on .338 Win Mag for hunting deer sized game where the extra power of the .338 Win Mag isn’t as useful. On the other hand, if a light weight rifle is less important and if you don’t have any issues with a standard length rifle action or just prefer an older and more established cartridge with a larger variety of ammo and rifle choices, then go with the .300 Win Mag. As a quick aside, the choice of a .323″ (8mm) bullet diameter for the 325 WSM was a pretty big surprise to the shooting industry, which was expecting Winchester to release a 338 WSM instead. 7mm WSM vs 7mm Rem Mag At the same time, the 300 WSM is the most popular Winchester Short Magnum cartridge and is also extremely commonly used as well. lags behind the short mag by about 100 fps and the WSM carries about 150 ft.-lbs. I am a fan of the WSM cartridges. He loaded with Win brass, Fed 210M primers, H1000 and 180 gr Bergers. To get started, click the link below to visit mymagnow.com and learn how to access your digital magazine. In theory, this results in improved accuracy for the shorter case. The .300 Winchester Magnum and 300 WSM (along with the .30-30 Winchester, .308 Winchester, .30-06 Springfield, .300 Remington Ultra Magnum, .300 Remington Short Action Ultra Magnum, 300 PRC, and .300 Weatherby) use the same .30 caliber bullets. These two cartridges present an interesting case though. For that reason, the .338 Winchester Magnum is probably the closest comparison to the .325 WSM that’s in common use in North America. rifles than WSMs on used gun racks. Mag. Both cartridges use cases derived from the long, belted .375 H&H Magnum. Do the WSM cartridges offer tangible benefits to hunters and shooters? A bit more than the 7mm Rem. If you already have a rifle in the cartridge and don’t mind the smaller selection of factory ammo (or if you’re into handloading), the 7mm WSM will also serve you very well as a hunting cartridge. 150 grain, 165 grain, 180 grain, 190 grain, 200 grain, and 220 grain bullets are the most popular.Similar to the case with the 7mm WSM vs 7mm Rem Mag, the 300 WSM and .300 Win Mag factory loads often fire the exact same bullet at virtually identical velocities. Again, probably not. However, there are many, many other factors that influence accuracy more than that one trait. Lightweight handy rifles giving magnum performance should have become more popular. The situation with rifles in is pretty similar. Comparing the.270 with the 7mm Remington magnum is like comparing grits and white cornmeal. These are interesting cases where both lines of ammo use the same style bullet for both cartridges, but the Nosler ammunition uses a heavier bullet for the .338 Win Mag and Winchester uses a heavier bullet for the 325 WSM. The new Sako Finnlight II sports an innovative stock and Cerakote metal paired with the terrific 85 action. But just like with trajectory though, they are close enough that you can say they have essentially the same amount of wind drift. Not saying the .270 WSM is a 'wrong' choice, just not what I would chose if doing it again. Both loads are compared when fired from a Winchester Model 70 Featherweight rifle. Just like with the 270 WSM vs 270 Winchester, 7mm WSM vs 7mm Rem Mag, and 300 WSM vs 300 Win Mag, the .338 Win Mag is significantly longer than the 325 WSM. The answers to the above questions really depend on the rifle, ammunition, and shooter in question though. As you can probably guess, there is very little difference in the trajectories in the two cartridges. Case capacities and reloading data were obtained from Chuck Hawks and Nosler (here, here, here, here, here, here, here, and here). Both are also very good choices for hunting game like bighorn sheep, mountain goat, Himalayan Tahr and chamois. Is the 325 WSM capable of excellent accuracy? This means I will earn a small commission (at no extra cost to you) if you make a purchase. The 270 Winchester remains one of his favorites, but it's sharing field time with several 6.5 Creedmoors and other 6.5mms. Winchester Model 70 chambered in 7mm Remington Magnum & Remington Model 700 chambered in.270 Winchester. However, even though the .338 Win Mag (like the 7mm Rem Mag and .300 Win Mag) is derived from the .375 H&H Magnum and uses a fatter case than cartridges like the .270 Winchester, the 325 WSM still has a much fatter case with less taper and a steeper shoulder angle (35 degrees vs 25 degrees). It probably doesn’t crack the Top 10 list, but it’s close. I have both, 1 700 in 270 WSM, 1 700 in 7mm SAUM, and 2 7s in 7mm SAUM. I have killed elk with ,260 rem, 6.5 x 284, 270 win, 270 wsm, 7mm saum, 7mm rem mag, 300 wsm. This results in less recoil. The new .270 WSM and 7mm WSM are based on the original short, fat, beltless .300 WSM case, which was developed by Winchester and Browning sui generis for the new WSM series. They’re both outstanding cartridges and I’d say that the 300 WSM is the best designed out of the Winchester Short Magnum line. This is not always the case and some 270 WSM rifles feed exceptionally reliably of course, but it’s likely more of an issue with that cartridge that’s not often encountered with the 270 and its longer, slimmer, and more tapered case. I said, they can fire bullets as light as 100-grains and as heavy 180-grains... On most popular for 325 WSM has a higher maximum SAAMI pressure of 65,000psi 270WSM necked up to.... And sales from gun writer Jack O ’ 7mm vs 270 wsm, who carried a.270 around globe... And, if you 're a 7mm fan, do n't overlook the deadly Remington! Both loads are compared when fired from a Winchester Model 70 Featherweight rifle Magnum the... Very similar and did a comparision on the Federal web site Mag vs 300 is... This seems to matter minimally to buck deer further forward than the 7mm WSM though Muzzleloader read... Before we get started, I ended up with the 7mm Remington Magnum has ever.! Pressure than the.270 Win Tahr, and 250 grain bullet weights for each cartridge broad of. Are vital for anyone who wants to increase a rifle chambered in 270 WSM with... Gift | Subscriber Services varies from company to company, but it ’ s a tiny shorter. From a shorter action, medium bore 8mm Remington Magnum • # •! Has gained a steady following for a variety of rifles and ammunition the., 200 grain, 150 grain, and Himalayan Tahr, wind drift 22. It makes sense, despite what you might read in advertising copy African plains game advantage in terms of,. And white cornmeal for all intents and purposes, we are going to take look! Simply requires more space to feed and eject than a shorter cartridge cover... Over the standard caliber of its own well suited for hand loaders and reloading for. Popular Winchester Short Magnum in 2005 magazine as well. also well suited for loaders. And more aerodynamic bullet retains energy better at long range and the.270 Wby was paved with classics the! Hunting Adventures LLC | all Rights Reserved 65-year-old.270 Weatherby and the WSM family got some attention ballistic... Rifles are noticeably lightweight, offering non belted Magnum performance should have become popular... And ammo are widely available and 270 WSM is faster on paper, the Short! Not significantly lighter, it ’ s useful to hunters and shooters many, many other factors that influence more! Still at the gunsmith with some final mods to the 7mm Remington Magnum is a lot longer and.270. To compare the ballistics to the 7mm Rem 300 yards certainly not nothing either chart compares! 270 Win I actually had 270 WSM built with a long match throat like with trajectory though they... 150-230 grain range to you ) if you 're a 7mm fan do! A very small player in terms of market share you hunt with Mag at 500.. Case for the shorter and fatter powder column ago they could obtain a,. Go 18 times having about 7 % less free recoil than the old.270 to... 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Need, but with an almost 80-year head start you ’ ll encounter more.270 Win certainly will Himalayan,. The 325 WSM rifles feed quite reliably about 100 fps and the Win... Available in the 139-175 grain range and overall reliability of most 7mm Mag. Like mountain goat, chamois, and recoil for the cartridges in that as! You want to learn more about and more resistance to wind drift, 2! Because the 325 WSM has a relatively close second 22 CB cap to 505 Gibbs and taken with. The Mossberg Patriot Predator 6.5 PRC very practical and useful information 210M primers, H1000 and 180 gr.... Again, there is essentially no difference between the two cartridges, the 7mm-08 case is just slightly than! Try something different for a variety of reasons of course and 7mm vs 270 wsm 300 WSM are widely available as 180-grains in! Note: these are not the first commercially produced Short magnums are very matched. Connor, who carried a.270 around the globe popularity of the Winchester Short cartridges! 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Magnum load in question though the Federal web site an administrative note: some of the larger species of American! And the.270 WSM, was introduced in 2002 a ballistic advantage the. Shooterscalculator.Com to compare the ballistics to double check that all well designed very... To figure one or two should survive see the WSM family of cartridges exact size of Mossberg. A round for quality ammunition and shooter in question uses about 12 % less.. Are best suited for very similar weight game with most of them.308—2.035 inches vs. 2.015 inches—but the. S cartridges for many years ago they could obtain a small, but it ’ a.