They are both belted magnums based on a blown out .375 H&H case with a 25-degree shoulder, reduced to a length of 2.17 inches. SAUM and .300 RCM also advertise similar ballistics. by a nose. 7mm WSM Ballistics. All figures taken in 24 inch test barrels. Remington claims that the ballistics of the 7mm SAUM equal those of the popular 7mm Rem. These .308 length offerings, developed by Hornady for Ruger, are based on shortened .375 Ruger case. 7x64mm Brenneke Ammo. That's plausible. The 180 grain factory load claims a MV of 2970 fps and ME of 3526 ft. lbs. Foundry Outdoors carries the best selection of 7mm WSM Winchester Short Magnum ammo online. The .300 SAUM is already obsolescent, as even Remington has quit chambering rifles for it. This means that they offer improved feeding reliability compared to the WSM and SAUM short magnums. and exactly the same claim is made for the 7mm WSM. Mags.) The ballistics of the .350 Remington Magnum factory load introduced in 2003 claim a 200 grain bullet at a MV of 2775 fps and ME of 3419 ft. lbs. lbs., well beyond the performance of the standard short action .260 Remington. Mule Deer Cartridge Showdown: .270 Win. Abbreviated Name: 7mm WSM TECHNICAL INFORMATION: All of the WSM cartridges are based on the 404 Jeffery non-belted magnum cartridge, and have been shortened to fit a short action. Compare all 7mm Remington Magnum ammunition manufacturers on one easy to read chart. at the muzzle. It … 308 Win. 9.3x62mm Mauser Ammo. The standard length 7mm Rem. 30 TC. From left to right: http://www.chuckhawks.com/short_magnums.htm, http://www.chuckhawks.com/factory_ammo_prices.htm, http://www.ballisticstudies.com/Knowledgebase/7mm+Winchester+Short+Magnum.html, https://en.wikipedia.org/w/index.php?title=7mm_Winchester_Short_Magnum&oldid=977598058, Creative Commons Attribution-ShareAlike License, This page was last edited on 9 September 2020, at 20:15. 8x57mm (8mm Mauser) Ammo. It has plenty of killing power, even when fired from a 22 inch barrel. 30-30 Win. With a 160 grain bullet the Winchester figures are 2990 ft/s and 3176 ft. lbs. A short action 27” barreled 7mm WSM is approximately the same length as a 26” barreled 7mm Remington Magnum. Ballistics comparison video between the 7mm Remington Magnum vs the 300 Winchester Magnum. Unfortunately, the long 250 grain bullets that made the .338 Win. 300 RCM. In short, like the 7mm Rem Mag, the .300 Win Mag is an excellent cartridge that packs more performance than the .30-06 Springfield into a comparably sized package. The WSSM cartridges have caused major problems for rifle designers attempting to work with these very short, very fat cases, because they are an inherently poor design for use in the box magazines of almost all modern repeating rifles. 30-06 Sprg. The Remington Custom Shop also chambers rifles for the .350 Magnum, which seems to have caught its second wind in the 21st Century. is a true medium bore cartridge. In 2004 they announced the .25 WSSM. And it offers moderate recoil (13.1 ft. lbs. (The latter is rather a mixed blessing when shooting a magnum cartridge.). The .338 RCM is offered factory loaded with 200 and 225 grain bullets, which is fine as far as it goes. The 6.5mm Remington Magnum is a flat shooting, long range CXP2 class game (deer, antelope, sheep, goat, and black bear) cartridge on the order of the .270 Winchester. Cartridge Type: Rifle Height: 2.1" Width: 0.535" Average FPS: 3134 Average Energy: 3314 Average Gr: 152 Recoil: 2.06 Power Rank: 4.76 of 20 The 7mm Winchester Short Magnum (WSM) was designed in 2001 by Winchester Repeating Arms Company and Browning Arms Company. The 6.5mm Rem. The 7mm Winchester Short Magnum (also known as the 7mm WSM) is a centrefire cartridge developed in partnership with Browning Arms Company and Winchester ammunition, making its debut and introduced to the shooting public in 2001.. I have both 7mm Mag and 6.5PRC rifles. The case is based off a .300 WSM with a narrowed neck to fit .284 inch bullets on a .321 inch neck and the parent case is the .404 Jeffery. I like 7mm ballistics, however, the 7mm always seemed to me to be a P.I.T.A. Mag. Mag., 6.5 Rem. What Are The Finer Points In Reloading the 7mm Rem Mag. 13 shows top velocities of 2942 fps with their 180 grain bullet, 2676 fps with their 220 grain bullet and 2484 fps with their 250 grain bullet, all taken in the 22 inch barrel of a Ruger M-77 rifle. It is no different in this respect than the popular 300 Winchester Magnum. The 7mm WSM and 7mm Remington Magnum are best suited for the exact same hunting situations. This cartridge came about as the result of a failed attempt to create a .338 WSM. The other day my friend offered to let me shoot his Browning 7mm short mag. 28 Nosler. It is probably a better choice than the 6.5 Magnum for large CXP3 class game like elk. are unique because of their short, belted cases (and easy to tell apart because one has a skinny bullet and one a fat bullet), the new WSM and SAUM short magnums all look very similar to each other. But the driving force behind the shortmags could just as likely have been a mandate from marketing to dream up another neato magnum offering so they could sell more guns and ammo. lbs.). More important, the short magnum cartridges work through short rifle actions, which saves about 1/2 inch of bolt throw as well as overall rifle length, and a few ounces of weight. As the 7mm Rem Mag is of smaller caliber than the 300 Win Mag, it is a very good choice for lighter, smaller animals. 300 Sav. 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 7mm SAUM currently retains a small following. The Hornady Reloading Handbook lists loads up to 3000 fps with 140 grain bullets, and 2800 fps with their 160 grain bullet. The .300 WSM, .300 Rem. We put 3 popular cartridges to a head-to-head-to-head test Uncategorized Ammo. Mag. These figures were taken in 24 inch test barrels and WSM hunting rifles generally fall about 100 fps short. I thought "well this may be the answer to my issue"! Firstly, both rounds are belted mags based on the .375 H&H Magnum cases.The primary function of a belted magnum was to provide accurate headspace control because the sloping shoulders, while reducing … This is a beltless bottleneck case with a rim and head diameter of .532". In this cartridge comparison of the 7mm Rem Mag vs .300 Win Mag, ... it also must send heavier grain bullets down range while maintaining necessary terminal ballistics. Mag. 7mm Rem Mag vs 300 Win Mag: Cartridge Sizes. Mag. in an 8 pound rifle) in the light weight hunting rifles that are the natural home of short magnum cartridges. This gun in a short action with a 26″ barrel tips the scale at 6 lbs 3 ozs. The 7mm WSM and 7mm Rem. This length was chosen to allow it to work in the Model 7 short action rifle. SAUM). All of these are based on the WSM case shortened to a length of only 1.65" and a COL of 2.36". By David E. Petzal. All rights reserved. Interesting cartridges, these short magnums. Magnum are unique cartridges and each offers something special to the shooter. They have not achieved any lasting commercial success and WSSM rifles have already been discontinued. 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. handily out-performs the new .25 WSSM, also introduced in 2004, as a big game hunting cartridge. Another drawback is its vicious recoil in the light Browning and Winchester rifles supplied in .325 WSM, recoil comparable to the .338 RCM and in excess of the .350 Rem. The .270 WSM kicks a lot harder than the 6.5mm Magnum, just under 19 ft. lbs. The 7mm WSM d… This can lead to feeding failures and over-ride jams. Mag. That alone might be a good reason for Ruger and Hornady to take such a step. The overall cartridge length was set at 2.825 inches. 7x30mm Waters Ammo. They are not just duplicates of earlier cartridges. The .300 WSM has found a place in the market, while the .300 SAUM is already obsolescent. 30/40 Krag. Also, the short 7mm magnums are not recommended (for the reasons cited above) for hunting thin-skinned dangerous game (bears and big cats). lbs., a 140 grain bullet at a MV of 3125 fps and ME of 3035 ft. lbs. (An unnecessary reduction in firepower is clearly undesirable when hunting dangerous game.) The RCM's were introduced in 2008. The 150 grain factory load advertises a MV of 3200 fps (3110 fps) and a ME of 3410 ft. lbs. It is worth noting that the 6.5mm Mag. and 6.5mm Rem. Re: 7mm mag vs 7mm wsm ?? The most recent short magnum cartridges, as of this writing, are the .300 and .338 Ruger Compact Magnums (RCM). Mag. However, after looking at the Sherman case, it looked exactly like a 6mm Dasher on steroids! All of the WSM and SAUM cartridges use a .532-.534 inch rebated rim of standard (.375 H&H) Magnum diameter. IMR 4350 seems to be an efficient powder for this cartridge. Remington’s 7mm Mag. I am not a ballistician so I never could figure why I was having trouble. The 7mm Rem Mag is a flat shooting round that is available in a good selection of bullet weights, though maybe not as many as the .30-06 Springfield. Compare all .300 ammunition manufacturers on one easy to read chart. The actual ballistics obtained with your firearm can vary considerably from the advertised ballistics. ... Ballistics. I look at all this with considerable interest, having just inherited some rifles, including an R700 7mm Remington Magnum. 30 Caliber.308” Diameter. Any .300 Magnum is most appropriate when the emphasis in on hunting the larger species of big game. The .270 WSM shoots as flat as the 6.5mm Magnum and hits a little harder. The lighter, shorter 7mm bullets are preferred in these short case magnums. And, in spite of the myriad attempts to produce a 7mm Mag. These figures were all taken in a 24 inch test barrel. Given the initial lack of consumer acceptance, the development of short magnums languished after 1966. SAUM and .300 RCM also advertise similar ballistics. The 7mm WSM cartridge achieves its useful purpose as an excellent cartridge for larger mule deer, sheep, black bear and elk. Such a cartridge would have no advantage over the .257 Weatherby and could not match that cartridge's ballistics, but it would clearly outperform the .25 WSSM. The 7mm WSM is similar to the .300 WSM and .270 WSM cases necked down to handle .284" bullets. The 6.5mm Rem. The 140 grain factory load advertises a MV of 3225 fps (3175 fps) and ME of 3233 ft. lbs. It is a member of the Winchester Short Magnum family of cartridges. Discussion in 'Rifle Country' started by Newbie22, Oct 9, 2012. 300 Blk. Think, pronghorn, mule, and fallow deer. Meanwhile, Remington had made the first .300 Short Action Ultra Mag cases in 1999 and was already well along in the process of developing their Short Action Ultra Mag cartridges. Copyright 2002, 2017 by Chuck Hawks. With any rebated rim case, the face of the bolt has less overlap with the rim of the case as it attempts to slide it forward and out of the magazine lips. In 2005 the .325 WSM came along. The 7mm Winchester Short Magnum (also known as the 7mm WSM) is a centrefire cartridge developed in partnership with Browning Arms Company and Winchester ammunition, making its debut and introduced to the shooting public in 2001. It is a member of the Winchester Short Magnum family of cartridges. WSM and WSSM family of cartridges. SAUM, 7mm Rem. 7mm Remington Short Action Ultra Magnum Rifle Cartridge by Nosler Inc. Nosler - Bullets, Brass, ... Abbreviated Name: 7mm Rem SA Ultra Mag Slang Name: 7mm SAUM . The 150 grain factory load has a claimed MV of 3300 fps and ME of 3628 ft. lbs. The fact that it also has a milder recoil than the 300 Win Mag makes the 7mm Rem Mag a sound choice for those heading out on mountain hunting expeditions. . The following are Winchester .300 WSM figures. Mag. The 7mm WSM is similar to the .300 WSM with the case necked down to handle .284" bullets. .350 Rem. In a hunting rifle, any advantage conferred by a shorter powder column is insignificant. The stats are generated using both a 7mm Remington Magnum, Winchester Ballistic Silvertip, 140g (ballistic coefficient 0.46) and a 7mm Remington Magnum, Winchester Ballistic Silvertip, 150gr (ballistic coefficient 0.493) being fired at a velocity of 3100fps from muzzle point blank, this also takes into account the standard 1.5" scope height, and a gun that has been sighted in at 100 yards. Magnum, .270 WSM and .350 Rem. (3221 ft. If you want a flat shooting round for short hunting situations, both the 7mm RM and the .300 WM are going to get the job done. 7mm Rem Ultra Mag. I'd rather shoot the PRC all day long rather than the 7mm. Regardless, if I had to pick just one of these for all-round hunting, it would be the 7mm Rem. The discontinued Remington factory load drove a 250 grain bullet at a MV of 2419 fps with ME of 3220 ft. lbs. The shoulder angle was moderated to 28 degrees in an attempt to retain a modicum of feed reliability. Mag. Complete .300 Winchester ammunition ballistics Chart. Those who are interested can read the individual articles about the various short magnums on the Rifle Cartridge Page. vs. .300 Win. vs. 7mm Rem. The .300 WSM, .300 Rem. to get tuned properly and KEEP it tuned properly. Some people erroneously believe the short case necks make the 7mm WSM poorly suited to heavier bullets, limiting the cartridge's usefulness on larger game. are the best designed and most reliable of the short magnum cartridges. In shorter barrels, performance declines dramatically. 9.3x72mm Rimmed Ammo. In 2003 Winchester introduced a line of Super Short Magnum (WSSM) cartridges, starting with the .223 WSSM and .243 WSSM. Mag., forcing it into near-obscurity. However, their fat bodies have a head diameter immediately above the extractor groove of about .55 inch. These are short action calibers, designed to work through .308 Winchester length actions. It pretty well fills the bill for a short action elk caliber with all-around capabilities and it was on the ground first, although the .300 RCM is technically superior. As a cartridge for a "guide rifle" it is hard to beat. With the exception of the .300 RCM, the other .300 Short Magnums are not recommended for use on dangerous game. Thread Status: Not open for further replies. and a 150 grain bullet at a MV of 3150 fps and ME of 3304 ft. lbs. The .300 WSM seems to be the favorite among all of the short magnums. Mag. The first true commercial short magnum was the .350 Remington Magnum, introduced in 1965 by Remington. 7mm STW. Units of Measure. in an 8 pound rifle, but less than the other short magnum cartridges. I can see some appeal to the idea of a .250 Short Magnum based on the .300 RCM case. Mag. Like the earlier Remington short magnums, they mate with standard magnum-size bolt faces. (3133 ft. 7mm-08 Remington Ammo. The 7mm Winchester Short Magnum (also known as the 7mm WSM) is a centrefire cartridge developed in partnership with Browning Arms Company and Winchester ammunition, making its debut and introduced to the shooting public in 2001. However, the distance from the case head to the datum line on the shoulder is longer for the 7WSM, preventing accidental chambering or firing of the .284" 7mm bullet in .270 WSM's .277" bore. The .350 Remington Magnum is a special cartridge because it brings true medium bore stopping power to short action rifles, combined with a useful 260 yard maximum point blank range. Following the initial success of the .300 WSM, the .270 WSM, 7mm WSM and 7mm SAUM were introduced. The 7mm Remington Magnum offers ballistics better than the .30-06 Springfield with all available bullet weights, one of the more popular loads being a 160 grain spitzer loaded to 3,000 ft/s (910 m/s). The combination of great ballistics with manageable recoil has made the 7mm cartridge a favorite among long-range prone and benchrest shooters. Also, the short 7mm magnums are not recommended (for the reasons cited above) for hunting thin-skinned dangerous game (bears and big cats). 7mm Rem Mag vs 300 Win Mag – Comparing Cartridge Sizes. Magnum's reputation as a slayer of giant animals takes up too much powder space in the short RCM case to be practical. Mag., .270 WSM, .300 WSM, 7mm WSM, .300 Rem. Bullet Style: Partition Use: Deer & Elk Sized Game. 7x57mm (7mm Mauser) Ammo. Special deals on 7mm WSM Winchester Short Magnum ammo.Products listed on our website are in stock and ready to ship. and superior to the .325 WSM. It actually has a .315" bore diameter and should have been named the .315 WSM. (3112 ft. that will better the performance of the Remington version, it still maintains its seat at the head of table. The .350 was reinstated in 2003 when Remington brought out the Model 673 bolt action rifle for the caliber. The Federal Ballistics Calculator lets you quickly determine the trajectory for any rifle or handgun load, and save data for an unlimited number of loads. rifles. The standard length 7mm Rem. The Speer Reloading Manual No. These are based on the fat (.550 inch head diameter), beltless, .300 Ultra Mag case shortened to a length of 2.015 inches. came on the scene and won the hearts of many hunters looking to use a bullet of less than .30 caliber, and quickly overtook the .264 Win. 7x65mm Rimmed Ammo. Paramount are the uniformity and concentricity of the bullet, the quality and precision of the rifle barrel, the care taken in bedding the barrel and inletting the stock, and the care with which the loads are assembled and matched to the rifle. 308 Mar Exp. The 7mm Remington Magnum is a versatile cartridge that’s well-served by slow burning powders. 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Family of cartridges test ballistics Calculator 3300 fps and ME of 3628 lbs. 80Fps faster than the standard short action.358 Winchester can achieve ballistician so i never could figure why i having! A 35-degree shoulder, a 140 grain bullet bottleneck casing with a 160 grain factory drove!