The .25 Winchester Super Short Magnum is a third member of the Winchester Super Short Magnum (WSSM) cartridge family created by Winchester and Browning. It is the largest caliber of the WSSM line (excluding wildcats) and is the most capable of handling large game such as deer and wild boar.
.25 WSSM
25 WSSM cartridges loaded for an AR-15 magazine. For comparison, a 2 3/4" shotgun shell & 5.56mm NATO cartridge are included
The 25 WSSM has similar ballistics to the .25-06 but in a much shorter case.
It is a necked-up version of the .243 WSSM,[1] which is in turn a shortened .300 WSM (Winchester Short Magnum). The WSSM cartridges are based on ballistics design philosophies that are intended to produce a high level of efficiency.[2]
Like the other WSSM rounds, the .25 is effectively a magnum in name, and energy-per-COAL, only. Performance wise it is nearly identical to the long action .25-06 Remington, making it well suited for medium to large game with the advantage of being usable by lighter short action rifles.[3] Having the short fat design, the cartridge loads potentially burn at a more consistent rate, in theory providing a lower muzzle velocity standard deviation (SD) for increased accuracy. Performance is far less than true .25 caliber magnum rounds such as the .257 Weatherby Magnum. In fact, ballistically it's almost identical to the improved version of the .257 Roberts, which P.O. Ackley said was his favorite choice for an all-around cartridge.[4]
^. Archived from the original on 2010-12-24. Retrieved 2010-05-04.
^The Overlooked .25 Caliber Cartridges by Chuck Hawks
^Handbook for Shooters & Reloaders vol I, Book by P.O. Ackley; Plaza Publishing, 1962, ISBN978-99929-4-881-1
External linksedit
The Overlooked .25 Caliber Cartridges by Chuck Hawks
January 01, 1970
winchester, super, short, magnum, topic, this, article, meet, wikipedia, notability, guidelines, products, services, please, help, demonstrate, notability, topic, citing, reliable, secondary, sources, that, independent, topic, provide, significant, coverage, b. The topic of this article may not meet Wikipedia s notability guidelines for products and services Please help to demonstrate the notability of the topic by citing reliable secondary sources that are independent of the topic and provide significant coverage of it beyond a mere trivial mention If notability cannot be shown the article is likely to be merged redirected or deleted Find sources 25 Winchester Super Short Magnum news newspapers books scholar JSTOR January 2023 Learn how and when to remove this message The 25 Winchester Super Short Magnum is a third member of the Winchester Super Short Magnum WSSM cartridge family created by Winchester and Browning It is the largest caliber of the WSSM line excluding wildcats and is the most capable of handling large game such as deer and wild boar 25 WSSM25 WSSM cartridges loaded for an AR 15 magazine For comparison a 2 3 4 shotgun shell amp 5 56mm NATO cartridge are includedTypeRiflePlace of originUSAProduction historyDesignerBrowning WinchesterManufacturerWinchesterProduced2004 presentSpecificationsParent case 300 WSMCase typeRimless bottleneckBullet diameter 257 in 6 5 mm Land diameter 250 in 6 4 mm Neck diameter 305 in 7 7 mm Shoulder diameter 544 in 13 8 mm Base diameter 555 in 14 1 mm Rim diameter 535 in 13 6 mm Rim thickness 054 in 1 4 mm Case length1 670 in 42 4 mm Overall length2 362 in 60 0 mm Primer typelarge rifleMaximum pressure transducer 65 000 psi 450 MPa Ballistic performanceBullet mass type Velocity Energy75 gr 5 g VMax 3 775 ft s 1 151 m s 2 374 ft lbf 3 219 J 85 gr 6 g BT 3 547 ft s 1 081 m s 2 375 ft lbf 3 220 J 100 gr 6 g BT 3 264 ft s 995 m s 2 366 ft lbf 3 208 J 115 gr 7 g BT 2 999 ft s 914 m s 2 297 ft lbf 3 114 J 120 gr 8 g SP 2 985 ft s 910 m s 2 375 ft lbf 3 220 J Source s Hodgdon Online Reload Data Contents 1 Description 2 See also 3 References 4 External linksDescription edit nbsp The 25 WSSM has similar ballistics to the 25 06 but in a much shorter case It is a necked up version of the 243 WSSM 1 which is in turn a shortened 300 WSM Winchester Short Magnum The WSSM cartridges are based on ballistics design philosophies that are intended to produce a high level of efficiency 2 Like the other WSSM rounds the 25 is effectively a magnum in name and energy per COAL only Performance wise it is nearly identical to the long action 25 06 Remington making it well suited for medium to large game with the advantage of being usable by lighter short action rifles 3 Having the short fat design the cartridge loads potentially burn at a more consistent rate in theory providing a lower muzzle velocity standard deviation SD for increased accuracy Performance is far less than true 25 caliber magnum rounds such as the 257 Weatherby Magnum In fact ballistically it s almost identical to the improved version of the 257 Roberts which P O Ackley said was his favorite choice for an all around cartridge 4 See also edit 223 WSSM 243 WSSM 257 Roberts 25 06 Remington Winchester Super Short Magnum Table of handgun and rifle cartridges sectional densityReferences edit The 25 WSSM by Chuck Hawks Browning WSSM info Archived from the original on 2010 12 24 Retrieved 2010 05 04 The Overlooked 25 Caliber Cartridges by Chuck Hawks Handbook for Shooters amp Reloaders vol I Book by P O Ackley Plaza Publishing 1962 ISBN 978 99929 4 881 1External links editThe Experts Agree The WSSMs are Winners Browning The Overlooked 25 Caliber Cartridges by Chuck Hawks Retrieved from https en wikipedia org w index php title 25 Winchester Super Short Magnum amp oldid 1220755186, wikipedia, wiki, book, books, library,
