That said, 7 SAUM has plenty of neck. lol .300 saum is about $65 a box and you can get decent .300 wsm for $35. I've heard that reloading 300 WSM can be finicky (even seen guys get jammed in the … The 300 Win Mag is definitely faster than the 300 WSM. The short, fat 300 WSM, released on an unsuspecting public in the second year of the 21st century, boosts that slightly to 3,010 fps and 3,621 f-p. Mag. jonbearman I live in new york state,how unfortunate ! But the concept of loading a magnum cartridge in that short, rigid receiver held its allure; the short, squat powder column is believed by many to help in the accuracy and consistency department. As far as the discussion between the 300 short mag and the 7mm mag I think you are splitting hairs. The .350 Rem. Please note, the following information reflects the estimated average ballistics for each caliber and does not pertain to a particular manufacturer Based (loosely) on the .404 Jeffery case, and shortened to 2.100 inches, the beltless .300 WSM gave velocities nearly on par with its older brother in a shorter, lighter and more rigid rifle. The .308 Winchester went on to ‘standardize’ the short-action, being released in 1952, and the magazine length for that cartridge was the basis for a couple of early short-action magnum cartridges: the 6.5 Remington Magnum and the .350 Remington Magnum. Within pressure constraints you are looking at about 3250fps w/ 150gr, 3100fps w/ 165gr and 2950fps w/ 180gr with the 300 WSM and a 23" barrel. 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. Second, I feel that the RSAUM design has, and always will, feed better than does the WSM design. With good hand loads, there really isn't much difference. 7mm mag vs 300 Short mag by: PB I have owned a Remington 7mm mag rifle(s) and used it almost exclusively for hunting deer, elk and moose since 1968. But, the success of the release of the .300 WSM yielded the subsequent release of the .270, 7mm and .325 WSM cartridges. It offers velocities on par with the WSM variant, with both pushing a 180-grain bullet at 2900 fps, compared to the 2960 fps which is standard for the belted .300 Winchester Magnum. Our infatuation with short-action cartridges dates back over a century, what with the .250-3000 Savage and .35 Remington—just to name a couple—having celebrated their 100th birthday some time ago. .300 Blackout/.300 Whisper.300 H&H Magnum.300 Norma Magnum.300 PRC.300 Ruger Compact Magnum.300 RUM.300 SAUM.300 Savage.300 Weatherby Magnum.300 Winchester Magnum.300 WSM.303 Savage.303 British.307 Winchester.308 Marlin Express.308 Winchester / 7.62mm x51mm.308 Norma Magnum.32 Remington.32 Winchester Special.32-20 Winchester.325 WSM.33 Nosler The following ammunition cartridge ballistics information and chart can be used to approximately compare .30-06 Springfield vs .300 WSM Winchester Short Magnum ammo rounds. It's probably not worth rebarrelling in reality but it was just a thought. Major rifle and ammunition manufacturers have supported the .300 WSM and presently Remington have also adopted the .300 WSM in their M700 rifle line, the .300 SAUM barely surviving as a chambering for the model 7 rifle. The exterior and terminal ballistics of the two are virtually identical, but looking at the ammunition options, you’ll find there are many more choices for the WSM. Hot on the heels of the .300 WSM, Remington countered with the .300 Remington Short Action Ultra Magnum—or RSAUM for short—based on a shortened version of their 1999 .300 Remington Ultra Magnum cartridge. It bettered the velocity of the benchmark .30-06 Springfield by over 200 fps, yet could fit in a standard long action. vs. .458 Lott• 7mm Rem. Being beltless (again both the WSM and RSAUM are based on the beltless .404 Jeffery case) the .300 RSAUM’s shoulder offers enough of an angle to offer positive headspacing, yet feeds rather well for a short, squat cartridge. Both were based on a severely shortened H&H belted case, and both had a rough start. 300 WSM vs 300 Win Mag. Winchester's 300 WSM and 270 WSM are solid rounds that sell well. The SAUM line of cartridges are on life support and long term success doesn't look good I firmly believe the .300 WSM is the only member of that family that will remain on the scene, but I will also say that because I could handload my own ammunition, I wouldn’t turn down a good rifle chambered in .300 RSAUM. Privacy Policy   •   Contact Us   •   Warnings   •   FAQs   •  © 2021 National Rifle Association of America, Remington Model 700 American Hunter Rifle Project, Women On Target® Instructional Shooting Clinics, Volunteer At The Great American Outdoor Show, Marion P. Hammer Women Of Distinction Award, Women's Wildlife Management / Conservation Scholarship, National Youth Shooting Sports Ambassadors, NRA Outstanding Achievement Youth Award Presented by Brownells, National Youth Shooting Sports Cooperative Program, .450 Nitro Express vs. .470 Nitro Express, .358 Winchester vs. .350 Remington Magnum, .25-06 Remington vs. .257 Weatherby Magnum, Why Every Hunter Should Own a Rifle in a Common Caliber, 2021 National Rifle Association of America. Mag. Well, there are a few points that must be considered. This means the .300 WSM can beat the old H&H, but not by much — especially if you handload. The increase in length of the .300 WM over the .300 WSM is greater than the increased wideness of the case of the .300 WSM. A mate took this wild boar with his 300wsm. Access from your Country was disabled by the administrator. If that isn't fast enough for you than you can rule out the 300 WSM. is rare, but still draws breath, and the 6.5 Rem. Getting back to the original question. erreichen. Winchester certainly marketed it properly—though it was obviously in direct competition with both their .308 Winchester and the .300 Winchester Magnum—and it seemed like overnight everyone was carrying a three-hundred-short-mag. The short and fat .300 magnums are no better than other magnums of the same caliber, but the author likes them because by working in a short action, they help trim ounces from lightweight rifles like the Browning A-Bolt Mountain Ti in .300 WSM (top) and the Remington Mode. They are very similar in performance. Larry, Why would you select the 270 wsm over the 7mm or 300 wsm . I currently have both a 700 Remington and a M77 Ruger type rifles. This cartridge came about as the result of a failed attempt to create a .338 WSM. Of the second round of short-action magnums, Winchester had first to see the light of day. From what I have read, it sounds like the 1:11 twist will stabilize the 200 gr Accubond. The question is this: does that matter to you as a hunter or shooter? Keep in mind that Remington now loads and chambers their rifles forthe first three WSM's but not the other way around. We've got you covered.• .500 Jeffrey vs. .505 Gibbs• 7mm RUM vs. .300 RUM• .308 Winchester vs. 7mm-08 Remington• 6.5 Creedmoor vs. .260 Remington• .303 British vs. 8x57 Mauser• .30-06 Springfield vs. All Other .30s• .17 HMR vs. .17 WSM• .450 Nitro Express vs. .470 Nitro Express• 350 Legend vs. .35 Remington• .280 Ackley Improved vs. 7mm Rem. Mag.• .243 Winchester vs. 6mm Remington• 7x57mm Mauser vs. 7mm-08 Remington• .25-06 Remington vs. .257 Weatherby Magnum• .338 Winchester vs. .375 H&H Magnum• .30-30 Winchester vs. .35 Remington• .257 Roberts vs. .250-3000 Savage• .270 Winchester vs. .280 Remington• .35 Whelen vs. 9.3x62mm Mauser• .416 Rigby vs. .416 Remington Magnum• .308 Winchester vs. .30-06 Springfield• .22 Nosler vs. .224 Valkyrie• .300 Win. I have been debating the same thing as OP. With 150 grain bullets and RL19 powder Lyman has the 300 WSM doing 71 FPS more velocity than the 300 SAUM both with 1-10 Twist and 24" Barrel Lengths. In fact, the felt, or perceived, recoil is less than my .270 Win. Among the .300s, when you look at the dimensions of the two cases, it seriously boils down to nothing more than a popularity contest. 7 WSM has a short neck (which may adversely affect bullet alignment in bore). Mar 19, 2005. forum.accurateshooter.com/threads/what-to-go-with-300-saum-or-300-wsm.3860367/, Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.116 Safari/537.36. In a properly tuned rifle—with a good magazine follower and well-polished feed ramp—the WSM will feed just fine. QuakerBoy Senior Member. It fits actions designed for 30-06-length cartridges. A question for reloaders of .300 short mags: What issues have you encountered when trying to develop consistent loads for the short/fat mags and how did you overcome them? vs. .300 Win. The shorter datum line (distance from the base of the cartridge case to the beginning of the shoulder) of the RSAUM case, coupled with the lesser shoulder angle when compared to the WSM design results in a cartridge that, in my experience, feeds more reliably than the WSM does. by Philip Massaro - Mag. Mag.• .30-06 Springfield vs. .270 Winchester• 6.5 Creedmoor vs. 7mm-08 Remington• 8x57 Mauser vs. .318 Westley Richards• .358 Winchester vs. .350 Remington Magnum• .22-250 Remington vs. .220 Swift• .270 Winchester vs. .270 WSM• .26 Nosler vs. 6.5-300 Weatherby Magnum• .458 Win. AS far as recoil goes my 300WSM is not bad at all. 175rltw Senior Member. Thread starter #5. The .300 WSM also head-spaces off of the case shoulder, versus the older .300 Winchester Magnum's belted head space design. But do I got to a 197 SMK at 2748 FPS I get 6.8 mill elev 1.0 mill drift. That said, among the WSM cartridge line, the .300 seems to be the only one maintaining a serious presence; even the .270 WSM is falling off considerably, and the 7mm and .325 WSMs are apparently down for the count. Are you saying .300 wsm is $50 a box? In anything other than a properly built rifle, the cartridge will hang up, jamming the bullet nose into the feed ramp, and creating all sorts of frustration. Mag. Background: I spent the better part of 2 years trying to develop an accurate load for my 700 BDL in .300 SAUM. The .300 WSM has found a place in the market, while the .300 SAUM is already obsolescent. Its 2.1-inch case has straight walls; a steep, relatively short shoulder; and no belt. Nov 20, 2016 #12. That said, I've seen many more rifles chambered for the WSM than I have for the RSAUM, though the latter has a small, yet fervent fan base. The .300 WSM cartridge has certainly proven itself—it has plenty of killing power, and will truly take any game animal that a .30-caliber will take—but if your hunting rifle doesn’t feed right, you will end up frustrated. Both are faster than the .30-06 Springfield, and both give highly usable velocities, especially from a short, light rifle. Mag. According to my measurements, gross capacity of the .300 WSM is 8 percent greater than that of the .300 RCM and 9 percent greater than the .300 SAUM. is all but gone. The latter 2 are slightly different. 7mm-300 WSM a better choice than straight 7 WSM. is a classic “standard-length” cartridge based on the belted 375 H&H Magnum case.