7mm short mag ballistics

October 28, 2013 These figures are well beyond what the short action .358 Winchester can achieve. Let's take a look at the ballistics and prospects of the various short magnum cartridges, starting with the WSSM trio. It is no different in this respect than the popular 300 Winchester Magnum. For this reason, cartridges with rebated rims are not regarded as a good choice for use in rifles that might be used on dangerous game. Best prices on 7mm WSM Winchester Short Magnum ammo for sale online. at the muzzle. Factory loaded ammunition for the 6.5 and .350 Magnums was (temporarily) discontinued during the 1990's. All of these are based on the WSM case shortened to a length of only 1.65" and a COL of 2.36". WSM and WSSM family of cartridges. 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. Interesting cartridges, these short magnums. The 150 grain factory load has a claimed MV of 3300 fps and ME of 3628 ft. lbs. Ammunition prices are higher than those of the 7mm Remington Magnum and the .280 Remington,[4] both of which have similar performance to the 7mm WSM, with the 280 Rem having slightly less muzzle energy and the 7mm Rem Mag being roughly equal. Mag. 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. The .350 was reinstated in 2003 when Remington brought out the Model 673 bolt action rifle for the caliber. These are short action calibers, designed to work through .308 Winchester length actions. 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. They are not just duplicates of earlier cartridges. Mag. lbs.). vs. 7mm Rem. I have both 7mm Mag and 6.5PRC rifles. Remington’s 7mm Mag. 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 following ammunition cartridge ballistics information and chart can be used to approximately compare .270 WSM Winchester Short Magnum vs 7mm-08 Remington ammo rounds. handily out-performs the new .25 WSSM, also introduced in 2004, as a big game hunting cartridge. The body of the case is bigger around than the rim. In 2004 they announced the .25 WSSM. The overall cartridge length was set at 2.825 inches. These are the most useful of the short magnum cartridges, although not the most popular. 7mm Rem Ultra Mag. in an 8 pound rifle) in the light weight hunting rifles that are the natural home of short magnum cartridges. The most important difference between this cartridge and the .300 WSM is the relative scarcity of 8mm bullets for reloading. 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. 7mm WSM Ballistics. The 7mm Remington Magnum is a versatile cartridge that’s well-served by slow burning powders. Think, pronghorn, mule, and fallow deer. 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 7mm Rem Mag has a ton of potential other than merely being a hard-hitter if you handload the cartridge. This is a beltless bottleneck case with a rim and head diameter of .532". limit the average shooter would do well to observe. These should have been named WSSC (Winchester Super Short Cartridge), for the WSSM cartridges are not magnum cartridges in any sense of the word and thus do not really merit inclusion in this article. 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. Mag. Mag. The first true commercial short magnum was the .350 Remington Magnum, introduced in 1965 by Remington. It was a cartridge decades ahead of its time when it was introduced. In 2003 Winchester introduced a line of Super Short Magnum (WSSM) cartridges, starting with the .223 WSSM and .243 WSSM. is a true medium bore cartridge. This gun in a short action with a 26″ barrel tips the scale at 6 lbs 3 ozs. 7mm-08 Remington Ammo. In reality rifles chambered for the 7mm WSM typically chronograph 50-100 ft/s faster than the 7mm Remington Magnum with all bullets weights. 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. Recoil is right up there, at about 25 ft. lbs. 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. 30-06 Sprg. 8x57mm (8mm Mauser) Ammo. Their performance is easily exceeded by standard cartridges, such as the .25-06. 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. 9.3x72mm Rimmed Ammo. Given the initial lack of consumer acceptance, the development of short magnums languished after 1966. in an 8 pound rifle, depending on bullet weight. 7mm STW. Note: This information comes from the manufacturer and is for informational purposes only. SAUM). The .325 WSM is intentionally misnamed to make it sound bigger than it is. 30 Caliber.308” Diameter. Complete .300 Winchester ammunition ballistics Chart. With the exception of the .300 RCM, the other .300 Short Magnums are not recommended for use on dangerous game. 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. It is a member of the Winchester Short Magnum family of cartridges. Units of Measure. 30/40 Krag. Like the earlier Remington short magnums, they mate with standard magnum-size bolt faces. Mag. These are based on the fat (.550 inch head diameter), beltless, .300 Ultra Mag case shortened to a length of 2.015 inches. Foundry Outdoors carries the best selection of 7mm WSM Winchester Short Magnum ammo online. Mag. SAUM boast similar ballistics, although neither has become popular. The standard length 7mm Rem. The 180 grain factory load claims a MV of 2970 fps and ME of 3526 ft. lbs. Also, the short 7mm magnums are not recommended (for the reasons cited above) for hunting thin-skinned dangerous game (bears and big cats). 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. Nor are their sharp 30-35 degree shoulders conducive to smooth and reliable feeding. The most recent short magnum cartridges, as of this writing, are the .300 and .338 Ruger Compact Magnums (RCM). In fact, one of the justifications for the extremely sloping 8.5 degree shoulders of the original .375 and .300 H&H Magnum cartridges was feed reliability because of their anticipated use on dangerous game. Mag., forcing it into near-obscurity. All of the WSM and SAUM cartridges use a .532-.534 inch rebated rim of standard (.375 H&H) Magnum diameter. The following are Winchester 7mm WSM figures, with Remington 7mm SAUM figures in parenthesis. It is an excellent elk cartridge. These .308 length offerings, developed by Hornady for Ruger, are based on shortened .375 Ruger case. The Remington Custom Shop also chambers rifles for the .350 Magnum, which seems to have caught its second wind in the 21st Century. Mag. 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 7mm WSM cartridge achieves its useful purpose as an excellent cartridge for larger mule deer, sheep, black bear and elk. The WSSM's are really best suited for use in single shot rifles, just like the bench rest cartridges that inspired them and they have been a sales flop. 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. 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