Again, the above is for comparative information purposes only, and you should consult the exact ballistics for the particular .270 Winchester or .300 WSM Winchester Short Magnum cartridge you're looking at purchasing. Friday, October 12, 2018. For more detailed ballistics information please refer to the exact round in question or contact the manufacturer for the pertinent information. Generally speaking, the higher the muzzle energy, the higher the stopping power. It’s still something to think about even if you do have a lot of experience. With a 35˚ shoulder, and a 2.100″ case—the same as the .308 Winchester—the .270 WSM performs as advertised, giving a 200-250 fps advantage over its older sibling. Furthermore, the muzzle energy of a .270 WSM Winchester Short Magnum round averages out to 3170 ft-lb, while a .300 Winchester Magnum round averages out to about 3520 ft-lb. As a rule of thumb, when it comes to hunting, muzzle energy is what many hunters look at when deciding on what caliber of firearm / ammunition to select. Please note, the following information reflects the estimated average ballistics for each caliber and does not pertain to a particular manufacturer, bullet weight, or jacketing type. Perhaps it’s because the .270 Winchester does what it does so well. The decision for which round is better for a given application should be made with complete information, and this article simply serves as a comparative guide, not the final say. Mag. Please email us if you have questions about any of our product listings. Please email us if you have questions about any of our product listings. So a .270 WSM Winchester Short Magnum round exits the barrel … Tighten that twist up to 1:8″ or 1:8.5″, and you’d certainly be able to push the 170-grain bullets, like the Berger Extreme Outer Limits line, with the truly high B.C. Any heavier than that and you’ll lose stability, so while the .270 Winchester and WSM are both good, flat-shooting hunting cartridges, neither make a sound choice for today’s long-range shooting. 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. Many hunters preferred to carry “Jack’s two-seventy” afield each season, and nearly every rifle maker offered the cartridge in their lineup, whether it was a bolt-action, semi-automatic or pump. To put this into perspective, a Boeing 737 commercial airliner travels at a cruising speed of 600 mph, or 880 fps. So a .270 Winchester round exits the barrel with kinetic energy equal to the energy required for linear vertical displacement of 3780 pounds through a one foot distance, while a .300 WSM Winchester Short Magnum round exiting the barrel has energy equal to the amount required to displace 3580 pounds over the same one foot distance. Please note, the following information reflects the estimated average ballistics for each caliber and does not pertain to a particular manufacturer, bullet weight, or jacketing type. Had Winchester changed the twist rate, allowing the .270 to run heavy bullets, we may never have heard of the 6.5 Creedmoor, but alas, history is history. Get the American Hunter Insider newsletter for at-a-glance access to industry news, gear, gun reviews, videos and more—delivered directly to your Inbox. One way to think about this is as such: a foot-pound is a unit of energy equal to the amount of energy required to raise a weight of one pound a distance of one foot. vs. .300 WSM• .223 Remington vs. .22-250 Remington, E-mail your comments/questions about this site to: EmediaHunter@nrahq.org, For questions/comments about American Hunter magazine, please e-mail:Publications@nrahq.org, You can contact the NRA via phone at: NRA Member Programs1-800-672-3888, To advertise on American Hunter, visit nramediakit.com for more information. Comments have to be approved before showing up, © 2020 Foundry Outdoors - All Rights Reserved, Product successfully added to your Shopping Cart, 223 WSSM Winchester Super Short Magnum Ammo, 243 WSSM Winchester Super Short Magnum Ammo, 25 WSSM Winchester Super Short Magnum Ammo, 300 RSAUM Remington Short Action Ultra Magnum Ammo, 7mm RSAUM Remington Short Action Ultra Magnum Ammo, .270 WSM Winchester Short Magnum vs .300 Winchester Magnum Ammo Comparison - Ballistics Info & Chart. With a range of bullet weights between 90 and 150 grains, it could easily handle woodchucks and coyotes, as well as black bear. In all honesty, with the exception of the .300 WSM (and even that seems to be on the wane) the WSM line seems destined for obscurity. values. vs. .300 Win. That is to say, .270 Winchester bullets travel 3.5 times the speed of a 737 airplane at cruising speed, while .300 WSM Winchester Short Magnum bullets travel 3.5 times that same speed. 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. In all honesty, with the exception of the .300 WSM (and even that seems to be on the wane) the WSM line seems destined for obscurity. For more detailed ballistics information please refer to the exact round in question or contact the manufacturer for the pertinent information. Seventy-six years after the .270 broke cover Winchester launched the .300 WSM, and a year later in 2002 Winchester unveiled the .270 WSM.

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