The 30-degree shoulder angle of the parent case was retained, and the neck is very short. 7x65mm Rimmed Ammo. These .308 length offerings, developed by Hornady for Ruger, are based on shortened .375 Ruger case. Mag. in an 8 pound rifle) in the light weight hunting rifles that are the natural home of short magnum cartridges. 9.3x74mm Rimmed Ammo. 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. are the best designed and most reliable of the short magnum cartridges. For 2017 they are available ONLY in the Ruger Guide Gun. And, in spite of the myriad attempts to produce a 7mm Mag. in an 8 pound rifle, depending on bullet weight. The biggest problem with any .300 Magnum is its excessive recoil, which is well beyond the 15-20 ft. lb. (An unnecessary reduction in firepower is clearly undesirable when hunting dangerous game.) in an 8.5 pound rifle, although this is actually moderate for a medium bore magnum. And it offers moderate recoil (13.1 ft. lbs. That leaves the .338 RCM a definite step ahead of the .325 WSM, but clearly inferior to the .338 Win. 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. The overall cartridge length is 2.86 inches. is a true medium bore cartridge. lbs.). lbs., a 140 grain bullet at a MV of 3125 fps and ME of 3035 ft. lbs. In the same class as the .300 short magnums is the .325 WSM. All of the WSM and SAUM cartridges use a .532-.534 inch rebated rim of standard (.375 H&H) Magnum diameter. We put 3 popular cartridges to a head-to-head-to-head test Ammunition Inputs. The .350 was reinstated in 2003 when Remington brought out the Model 673 bolt action rifle for the caliber. to get tuned properly and KEEP it tuned properly. 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. Best prices on 7mm WSM Winchester Short Magnum ammo for sale online. The .270 WSM shoots as flat as the 6.5mm Magnum and hits a little harder. lbs.). (3221 ft. 7mm Rem Mag vs 300 Win Mag – Comparing Cartridge Sizes. Think, pronghorn, mule, and fallow deer. The standard length 7mm Rem. 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. Mag. 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. That's when Winchester kicked over the traces and brought out their .300 WSM cartridge, based on a new bottleneck case with a head diameter of .555 inch and no belt. What Are The Finer Points In Reloading the 7mm Rem Mag. Regardless, if I had to pick just one of these for all-round hunting, it would be the 7mm Rem. The following ammunition cartridge ballistics information and chart can be used to approximately compare .270 WSM Winchester Short Magnum vs 7mm-08 Remington ammo rounds. While you can read all over the internet published velocities of 3200 fps (130 grain ... click Goodbye 7mm Rem Mag, Hello 270 WSM Part II. Mags.) The true short magnum cartridges begin with the 6.5mm Rem. The main argument in favor of any of the short magnums is their alleged greater efficiency due to their shorter powder column. This length was chosen to allow it to work in the Model 7 short action rifle. Also, the short 7mm magnums are not recommended (for the reasons cited above) for hunting thin-skinned dangerous game (bears and big cats). Complete 7mm Remington Magnum Winchester ammunition ballistics Chart. Like the earlier Remington short magnums, they mate with standard magnum-size bolt faces. Specifications [edit | edit source]. Mag. limit the average shooter would do well to observe. 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. In 2003 Winchester introduced a line of Super Short Magnum (WSSM) cartridges, starting with the .223 WSSM and .243 WSSM. The .300 WSM, .300 Rem. at the muzzle. Winchester claims a muzzle velocity (MV) of 3,225 ft/s with a 140 grain bullet for their 7mm WSM cartridge; the claimed muzzle energy (ME) is 3,233 ft. lbs. Unfortunately, their stubby, short necked cases are not well adapted to 160 and 175 grain bullets, so they are less suitable for hunting the large game for which most customers purchase a 7mm Magnum rifle. 7mm STW. The 7mm WSM is similar to the .300 WSM with the case necked down to handle .284" bullets. That's plausible. The theory is that this shorter but wider powder column is more quickly and evenly ignited by the explosion of the primer, yielding more consistent pressure and somewhat improved accuracy compared to a standard length cartridge of the same capacity. Let's take a look at the ballistics and prospects of the various short magnum cartridges, starting with the WSSM trio. The following are Winchester 7mm WSM figures, with Remington 7mm SAUM figures in parenthesis. The Remington Custom Shop also chambers rifles for the .350 Magnum, which seems to have caught its second wind in the 21st Century. It is an excellent elk cartridge. That alone might be a good reason for Ruger and Hornady to take such a step. Hornady offers .300 RCM factory loads with 150, 165 and 180 grain bullets; 200 and 225 grain bullets are offered in the .338 RCM. 9.3x62mm Mauser Ammo. The most recent short magnum cartridges, as of this writing, are the .300 and .338 Ruger Compact Magnums (RCM). 7mm-08 Remington Ammo. The 6.5mm Rem. The RCM's were introduced in 2008. As the 7mm Rem Mag is of smaller caliber than the 300 Win Mag, it is a very good choice for lighter, smaller animals. All velocities were measured in a 24 inch rifle barrel. There has been speculation about what other calibers might be offered in one or the other of the short magnum formats. Ballistics Calculator. Overall cartridge length is 2.8 inches. Those who are interested can read the individual articles about the various short magnums on the Rifle Cartridge Page. 7x64mm Brenneke Ammo. 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. Compare all .300 ammunition manufacturers on one easy to read chart. 300 RCM. Mag. Velocities for this barrel length are on average, 80fps faster than the standard 7mmWSM and the reduction in recoil can aid accuracy immensely. SAUM). The lighter, shorter 7mm bullets are preferred in these short case magnums. This miracle of design is called a rebated rim and it allows increased powder capacity compared to the earlier .350 Magnum case, at the price of decreased feed reliability and one cartridge less magazine capacity. WSM and WSSM family of cartridges. Mag. The WSM magnum case has a 35-degree shoulder, a length of 2.1 inches, and a very short neck. in an 8 pound rifle, but less than the other short magnum cartridges. 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. Mag., forcing it into near-obscurity. 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. Remington’s 7mm Mag. In shorter barrels, performance declines dramatically. The Short Magnum Cartridges These claims are valid if the short magnum cartridges are fired in 24 inch barrels, the same length as the barrels of most 7mm Rem. .270 versus 7mm Rem Mag. Mag. Given the initial lack of consumer acceptance, the development of short magnums languished after 1966. However, their fat bodies have a head diameter immediately above the extractor groove of about .55 inch. ... Ballistics. 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. Re: 7mm mag vs 7mm wsm ?? 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.. 9x18mm Makarov Ammo. Case capacity of the SAUM is slightly less than the WSM, as is the factory COAL. 8x57mm (8mm Mauser) Ammo. This would exceed .25-06 performance in a short action cartridge and make an excellent, although specialized, long range plains and mountain rifle caliber. The .300 WSM, .300 Rem. SAUM, 7mm Rem. The other day my friend offered to let me shoot his Browning 7mm short mag. (3112 ft. vs. .300 Win. They have not achieved any lasting commercial success and WSSM rifles have already been discontinued. It actually has a .315" bore diameter and should have been named the .315 WSM. It … However, after looking at the Sherman case, it looked exactly like a 6mm Dasher on steroids! 30 Caliber.308” Diameter. It is a member of the Winchester Short Magnum family of cartridges. 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). Mag. 7mm Rem Mag vs 300 Win Mag: Cartridge Sizes. 7mm Win Short Magnum Ballistics: Chart of Average 7mm Win Short Magnum Ballistics. The newer .270 Winchester Short Magnum cartridge has factory loads using a 130 grain bullet at a MV of 3275 fps and ME of 3096 ft. 308 Win. 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