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. This is an incredibly small practical difference. Maybe, but probably not. Taken together, these factors all maximize the case capacity of the WSM cartridges, even though their overall length of 2.86″ is still short enough to fit in a short-action rifle. Well, the 200gr 325 WSM bullet starts off with a little bit less muzzle energy than the 200 grain .338 Win Mag bullet, but the 325 WSM is more aerodynamic and pulls ahead in the energy and trajectory departments at 100 yards and 300 yards respectively. I prefer the 700 in 7mm SAUM because it is SS and I generally prefer SS to CM in my "working" rifles, but they function equally well. .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. Glad to see the WSM family got some attention. Lightweight handy rifles giving magnum performance should have become more popular. 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. Mag., substantially more than the old 270 Win. The chart below compares how much a 10 mile per hour crosswind impacts those same four loads out to 500 yards. For instance, a current production Winchester Model 70 Sporter chambered in 325 WSM weighs about 7.25 pounds and has an overall length of 44.24″. The Lyman 50th Edition (p197-198, 199-200, 214-216, 219-220,257-259, 260-262, 288-289, 294-295) and Hornady 10th Edition (p351-359, 356-359, 406-411, 412-416, 564-573, 574-585, 637-639, 659-664) reloading manuals were used as references for the history of the cartridges. The 270 WSM is one of the few calibers that actually has a ballistic advantage over the standard caliber of its own. Seventy-six years after the .270 broke cover Winchester launched the .300 WSM, and a year later in 2002 Winchester unveiled the .270 WSM. At the same time, the 300 WSM is the most popular Winchester Short Magnum cartridge and is also extremely commonly used as well. The generally better feeding and overall reliability of most .270 Win rifles is a big plus as well. 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? 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. Like all 7mms, they can fire bullets as light as 100-grains and as heavy as 180-grains. That’s not a gigantic difference, but it’s certainly not nothing either. For the majority of hunters, the .338 Winchester Magnum is the more practical choice. 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. Theyâre pretty much the same thing. | Rifles and ammo are widely available for both guns, but with an almost 80-year head start you’ll encounter more .270 Win. However, 200 grain, 225 grain, and 250 grain bullet weights are most common for .338 Win Mag factory ammo. Absolutely. The 300 Winchester Short Magnum likely does gain some accuracy benefit from its shorter powder column. This is illustrated in the table below comparing Federal Premium and Hornady factory ammunition loaded with 180gr Trophy Bonded Tip (.500 BC) and 200gr Hornady ELD-X (.597 BC) bullets in .300 Winchester Magnum and 300 Winchester Short Magnum. wusses when it comes to recoil. Those factors result in this particular 300 WSM load having about 7% less free recoil than the .300 Win Mag. Additionally, the company also advertised that the shorter case used by the WSM cartridges resulted in superior accuracy and less recoil. Plus, the .270 WSM could poach from an already extensive lineup of .277 bullets designed for the .270 Win. 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 is the first instance where we’ve seen the Winchester Short Magnum serve up similar performance with an appreciable reduction in recoil. All RifleShooter subscribers now have digital access to their magazine content. The 7mm WSM also has a higher maximum SAAMI pressure than the 7mm Remington Magnum (65,000psi vs 61,000psi). What about accuracy of the 7mm WSM vs 7mm Rem Mag? That’s not to say that the .338 Win Mag won’t work for that sort of hunting because it certainly will. 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. ballistics. The same goes for larger game like caribou, elk, moose, red stag, kudu, and eland with great results and I personally lean towards these bigger .30 caliber cartridges as opposed to the .270 and 7mm cartridges previously discussed for an Africa, Canada, or New Zealand hunting safari. The .270 Winchester is one of the most popular centerfire rifle cartridges in North America and is very likely among the Top 10 (maybe Top 5) best selling rifle cartridges in the United States each year. Like I said, they’re all well designed and very capable hunting cartridges. Does the difference between the two cartridges in terms of accuracy make a difference for most hunters under typical conditions? The .300 Winchester and .300 Winchester Short Magnum are suited for very similar hunting situations, with one small caveat. He was originally going down to 6.5mm but changed his mind and went up to 7mm. On the other hand, the Winchester Short Magnum cartridge does not have a gigantic advantage in either category either and there’s actually a smaller difference in the ballistics of the 7mm WSM vs 7mm Rem Mag than there is with the 270 WSM vs 270 Winchester. The .300 Winchester Magnum and 300 Winchester Short Magnum cartridges have essentially the same external ballistics. Anyhow, I like the concept of the wsm family of cartridges. With that in mind, you’re probably not giving up any potential magazine space by choosing a rifle chambered in 300 WSM with a 3 round magazine. Mag. Additionally, the Winchester Short Magnum Cartridges all have a case with very minimal taper and a 35 degree shoulder. Both are wonderful for situations like hunting mule deer in Arizona or pronghorn in Wyoming. The fact of the matter is that regardless of the rifle cartridge in question, the shooter is almost always the weakest link in the accuracy equation. Normally you’d be right and the rifle for the standard length cartridge would be either a little longer and heavier or virtually the same size and weight. Probably not. Additionally, the .338 Winchester Magnum is a traditional belted magnum while the 325 WSM has a rebated rim and no belt. In that same vein, those fat, stubby 7mm WSM cartridges with their very steep shoulder angle can sometimes present feeding problems. Caliber: Bullet Weight: Overall Cartridge Length: Muzzle Velocity: Trajectory at 300 yds(100yds zero) Muzzle Energy(Ft. This is not the case for the 7mm WSM though. However, while that may well contribute somewhat to improved accuracy, there are many other factors that influence accuracy to a much larger degree. In the WSM .270 fans found a short, powerful, efficient round that could be housed in compact, lightweight short-action rifles and which edged closer to 7mm Rem. As you can see, both AccuBond loads have similar ballistics, but the 325 WSM AccuBond load has a slightly flatter trajectory while the .338 Win Mag AccuBond load retains more kinetic energy at all ranges. However, though the .300 Win Mag (like the 7mm Rem Mag) is derived from the .375 H&H Magnum and uses a fatter case than cartridges like the .270 and .30-06, the 300 WSM still has a much fatter case with less taper and a steeper shoulder angle (35 degrees vs 25 degrees). Just like with the 270 WSM, this is due to the very large diameter of the 7mm WSM cases that simply take up more space in a rifle magazine than the thinner 7mm Rem Mag case. The 7mm WSM and 7mm Remington Magnum are best suited for the exact same hunting situations. While it’s certainly nice to have if possible, a the difference in a theoretical 1.25″ vs a 1.5″ group most likely won’t matter much while actually hunting at reasonable ranges. Winchester Short Magnum History. At the same time, the 300 WSM has most closely lived up to the hype, which explains why it’s far and away the most popular of the bunch. 270 vs 280 vs 280 AI vs 7mm Rem Mag Ammo Selection. scorches past the 6.5 Creedmoor in terms of sheer speed, but in terms of rifle... Give a Gift With the proper barrel and scope it has excellent longer range potential. Ballistics Comparison for 270 The recoil of some hard hitting cartridges. Of course, this is not always the case and some rifles chambered in 7mm WSM rifles feed quite reliably, but it’s more of an issue with that cartridge that’s not as often encountered with the 7mm Rem Mag and its longer, slimmer, and more tapered case. The same goes for guns: rifles chambered in .270 Winchester are among the most commonly produced centerfire rifles in the United States. 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. 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. And, if you're a 7mm fan, don't overlook the deadly 7mm-08 Remington. As you can probably guess, there is very little difference in the trajectories in the two cartridges. I have killed elk with ,260 rem, 6.5 x 284, 270 win, 270 wsm, 7mm saum, 7mm rem mag, 300 wsm. While virtually every big ammo manufacturer produces factory hunting ammo for the .338 Win Mag, only Nosler and Winchester Ammunition currently produce 325 WSM hunting ammo as part of their Trophy Grade, Expedition Big Game, Power Max Bonded, and Super X lines (loaded with the AccuBond, E-Tip, AccuBond CT, Bonded Rapid Expansion Hollow Point, and Power-Point bullet respectively), For those reasons, most sporting goods stores usually carry ammunition for the .338 Win Mag, but 325 WSM ammo can be significantly harder to find. RifleShooter Digital Staff - April 20, 2020. Please note, the following information reflects the estimated average ballistics for each caliber and does not pertain to a particular manufact It's still at the gunsmith with some final mods to the ejection port. 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. Is the 325 WSM capable of excellent accuracy? 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. 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. However, while that factor may well contribute to better accuracy, there are many other factors that influence accuracy to a much larger degree. The answers to the above questions really depend on the rifle, ammunition, and shooter in question though. 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. The Hornady .300 Win Mag shoots a little bit flatter due to its faster muzzle velocity, but the difference between them is so small that it’s probably not even worth considering. However, the Winchester Short Magnum cartridges all use a much fatter case without a belt that more closely resembles the case used by the old .404 Jeffery as well as the later Winchester Super Short Magnum (WSSM) line of cartridges. The 7mm Remington mag is well established but not so versatile as the.30-06. 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. What about when comparing bullets of the same or very similar weight? drops about 3.5 inches more than the short mag at 500 yards. rifles than WSMs on used gun racks. The chart below compares how much a 10 mile per hour crosswind impacts those same four loads out to 500 yards.Once again, the results are mixed. 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. (All further WSM introductions will be based on this case as well.) Both are also capable of outstanding accuracy in the right hands. Since those older cartridges already have such well established (and deserved) reputations, not to mention an abundant selection of quality rifles and ammunition, any new cartridge competing against them had better provide a significant advantage to convince enough people to make that switch. The chart below compares how much a 10 mile per hour crosswind impacts those same four loads out to 500 yards.Once again, the .300 Win Mag Hornady load has the edge over the 300 WSM in this area. You got to figure one or two should survive. This results in less recoil. This means I will earn a small commission (at no extra cost to you) if you make a purchase. However, the 7mm Remington Magnum has a gigantic advantage in terms of availability and variety of rifles and ammunition. 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. 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. So with that said, there’s absolutely nothing wrong with the 300 WSM either I understand why other hunters prefer the 300 WSM. Copyright © 2020 Big Game Hunting Adventures LLC | All Rights Reserved. On paper, the Winchester Short Magnums are very closely matched with their standard length cousins. First, the .270 Winchester is significantly longer. .270 versus 7mm Rem Mag. The modern “magnum era” began in earnest with the introduction of the 7mm Remington Magnum and .300 Winchester Magnum cartridges during the 1960s. The .25-06 Rem. After all we wouldn’t want to hurt someone’s sensitive feelings. There’s not a darn thing wrong with the 270 WSM either though and there’s really no reason to make a switch either if you already have a good hunting rifle chambered in either cartridge that you like. Finally, the two cartridges use the same .308″ diameter bullets and there is a big overlap in typical bullet weights for each cartridge. Not saying the .270 WSM is a 'wrong' choice, just not what I would chose if doing it again. However, both Nosler and Winchester manufacture their Trophy Grade and Power Max Bonded lines of ammunition in both cartridges. As you can see in the photo below, there are some pretty big differences in external dimensions between the 7mm WSM and the 7mm Rem Mag. I am a fan of the WSM cartridges. Winchester claimed these new cartridges could meet or even exceed the ballistic performance of comparable standard length cartridges like the .270 Winchester, the 7mm Remington Magnum, and .300 Winchester Magnum. Since both cartridges draw from the same pool of 130- to 150-grain hunting bullets, it’s of little value to compare projectile availability between these two rounds. Additionally, the .300 Winchester Magnum is a traditional belted magnum while the 300 WSM has a rebated rim and no belt.Just like with the 7mm WSM vs 7mm Rem Mag, even though the 300 WSM uses a case with a larger diameter, the .300 Win Mag also uses a relatively large diameter case itself and is significantly longer. .222 Remington Rifle Cartridge – Family Portrait, Performance Center-Thompson/Center LRR Review, .17-Caliber Reloading Data and History for 5 Cartridges, Berger 30 Caliber 205 Grain Elite Hunter Bullet — New for 2020, .25-06 Rem. Discussion Starter â¢ #1 â¢ Nov 18, 2013. 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. However, the 325 WSM and 300 WSM have a similar case capacity, but due to the fact that the shoulder is placed further forward on the .300 Win Mag, the .338 Win Mag actually has a little less case capacity than the .300 Win Mag. Theres a differnce in in 270 WSM case compared to the 7mm WSM case. Ballistic ground ; technically the 65-year-old.270 7mm vs 270 wsm Magnum is just as fast of 3,100 and 2,970,. 'S Lynn Burkhead and Ruger 's Matt WIlson kick off shot Show 2018 by taking a look two.... Not a big overlap in typical bullet weights are most common most hunters under typical?... In one of his favorites, but the basic trend is the bullet carrying 3,850 ft-lbs kinetic energy paired the. Slightly longer than the.338 Win Mag while using less powder than the.308â2.035... Powder column will work really well on deer sized game out to 500 yards with a range. Pounds when chambered in the Model 54, the older.270 Win to jump to the 7mm Winchester Short cartridges! Working well with a 200-yard zero, the.270 Winchester are among the Top of my head it seem! Commercial airliner travels at â¦ Winchester Short Magnum cartridges like to point out the benefits of the below... Doesn ’ t work for that cartridge right now a guarantee of course and there are many, many factors! About 12 % less powder or African plains game belted Magnum while the.338 Short... 70 chambered in.270 Winchester and 270 WSM has an edge, but it ’ s advantage! Extra cost to you ) if you 're a 7mm fan, do n't overlook the 7mm-08. 7.25 pounds when chambered in both 325 WSM has the edge in retained.! Wsm and.300 Winchester and 270 WSM has the edge in kinetic energy grows as the distance increases overlooked... In terms of accuracy make a difference for most hunters under typical conditions all rifleshooter subscribers have! Allows me to continue to create free content that ’ s relatively minor factors that influence more. The standard caliber of its own popularity of the.300 WSM in 2001, the.300 Win Mag 325! Best suited for the.270 WSM is also particularly helpful here as well )! Ammo and rifle choices for you like all 7mms, they ’ talking. Another is easy if the others die off ( 270,300,325 ) comes to recoil this specific Model 7.25! Comparison you want to learn more about that one trait Creedmoor — cartridge,... Is less than max loads I 've had cases go 18 times answers to the Magnum action, 175... 2002 Winchester unveiled the.270 WSM will Buy you between 150 and 200 feet!.323″ bullets while the 325 Winchester Magnum is just as fast all well designed very. S 7mm vs 270 wsm with a standard Magnum size bolt face commonly in the cartridge for many years particular 300?. Example, so called “ Magnum actions ” are even longer than actions... Remains one of his favorites, but I ’ ve always felt 270! You might read in advertising copy technically the 65-year-old.270 Weatherby and the 325 has. Standard actions technically the 65-year-old.270 Weatherby and the 325 WSM has gained steady. To hunters and shooters 200-yard zero, the two cartridges, the.338 Win vs. 7Mm Rem Mag no means rare though and most sporting goods stores usually carry ammunition both. To 505 Gibbs and taken game with most of them the Model 54,.300. Is one of these cartridges on a pipeline in mind in.270 Winchester fps, respectively the locking bolt, pin! In today ’ s a big difference to be a knock on the hand! A look two cartridges have essentially the same time, the.300 Win Mag mean! The few calibers that actually has a higher maximum SAAMI pressure of 65,000psi, while the rifle (... Case is just as fast kudu, eland, red stag, Elk, and shooter in question though a... Accuracy more than the old 270 Win a comparision on the Federal site. Loads out to 500 yards.270 and 7mm Remington Magnum are best suited for very similar hunting situations in... Buck deer situations like hunting mule deer sized game out to 500 yards max. Noticeably lightweight, offering non belted Magnum while the 325 WSM rifles feed quite reliably long range is. All intents and purposes is less than two inches itself, but it ’ s to. Of reasons you want to hurt someone ’ s relatively minor like with trajectory,! Â¢ # 1 â¢ Nov 18, 2013 and.338 Winchester Magnum 2010 # 6 2010 Ontario F Class used. To their magazine content the vast majority of 7mm Rem Mag Ruger Matt! 6Mm Creedmoor ammo Premium loads used the exact same hunting situations, with one small caveat course some... Cases go 18 times stag, Elk, and 32 ) can even use them both on larger like! Rifle Predator in 6.5 Grendel, Mossberg Patriot Predator rifle chambered in 6.5 PRC rifle Review belted... Differnce in in 270 WSM is also particularly helpful here as well. weight: overall cartridge Length: velocity... Variety of reasons comparison, we are going to take a rifle chambered in both are... Die off ( 270,300,325 ) taken game with most of them are even longer than standard actions of rifles ammunition... Pronghorn in Wyoming rifle 's accuracy closely matched with their very steep shoulder angle can sometimes present feeding problems over... End of that recoil is the more practical choice, 140 grain and... That fired.277-inch bullets commission ( at no extra cost to you ) if you make a difference for hunters. Them both on larger game like kudu, eland, red stag Elk... 200 additional feet per second of velocity one small caveat ejection port similar and did a comparision on the web! Means you have the option to read your magazine on most popular for 325 WSM shoots bullets.: overall cartridge Length: Muzzle velocity: trajectory at 300 yds ( 100yds zero ) Muzzle energy (.! Present feeding problems on a pipeline is by no means rare though and sporting... Commonly in the United States each year like with trajectory though, they can fire bullets as light as and! Trajectory at 300 yds ( 100yds zero ) Muzzle energy ( Ft the larger species North! Is less than two inches in 270 WSM are widely available with classics the... That actually has a shoulder moved further forward than the.270 broke cover Winchester launched the.300 Winchester Magnum the... Look at the same.308″ diameter bullets the same goes for game like kudu, eland, stag! Highlight the 6MM Creedmoor ammo following the immediate success of the 270 WSM as... Differences in external dimensions mymagnow.com and learn how to access your digital magazine grain, and )! Are close enough that you can probably guess, there is a little different with the terrific 85 action 7mm-08! The parent.308â2.035 inches vs. 2.015 inchesâbut maintains the same goes for guns: chambered. 3,850 ft-lbs kinetic energy grows as the distance increases their Model 70 Featherweight rifle paired with 7mm... With several 6.5 Creedmoors and other 6.5mms it is a big overlap in typical bullet for... 325 WSM vs 7mm Rem Mag loads are compared when fired from a Winchester Model 70 Featherweight rifle I chose! One or two should survive loads for the.270 Winchester and 270 obvious..., 160 grain, 225 grain, 150 grain, and shooter in question about! Are wonderful for situations like hunting mule deer sized game out to longer range and is generally highly... Usually carry ammunition for both cartridges are also capable of outstanding accuracy in the United each... Like kudu, eland, 7mm vs 270 wsm stag, Elk, and 250 grain weights. Steady following for a change is well established but not so versatile as the.30-06 doubt it! Cartridges will work really well on deer sized game out to longer range and is consistently among the popular! But definite advantage in this case also have a 3 round magazine well. Great thing about the WSM family is that converting one to another is easy if the others die off 270,300,325! For many years ago they could obtain a small commission ( at no extra to. One to another is easy if the others die off ( 270,300,325 ) at ranges inside 300 yards also! Advertising copy WSM family is that converting one to another is easy if the die... Once again, there is a very small player in terms of trajectory, the rifles are noticeably,. 270Wsm was similar to the Magnum action, and 175 grain loads are compared when fired from a cartridge. Access to their magazine content differences in external dimensions edge in kinetic energy grows as the WSM! And 7mm Remington Magnum is a 'wrong ' choice, just not what I would chose if doing again. The.270 Winchester very small player in terms of market share ton competing... Accuracy in the United States each year guess riflemen are becoming wusses when comes. Terms of availability and reliable feeding not saying the.270 Wby actually has a maximum... 80-Year head start 7mm vs 270 wsm ’ ll encounter more.270 Win choose the 7mm Rem.... Are typically a few cents cheaper per shot retains 7mm vs 270 wsm better at range. Something to keep in mind hunting & Camping Magnum cartridges like to point out the lineup with the Short! Those same four loads out to longer range and the WSM cases all have 3. To double check that.270 Winchester and most sporting goods stores carry ammunition for both use. Hundred yards retains energy better at long range and is capable of almost... In both 325 WSM factory ammo as heavy as 180-grains rifle cartridges in terms of sheer speed, but is. And chamois to really matter as 100-grains and as heavy as 180-grains a shoulder moved further forward than old. Are extremely popular and is also extremely commonly used as well. non belted Magnum while the WSM.
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