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.225 Winchester
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Rifle cartridge
January 2013
.225 Winchester .225 Winchester with .223 Rem and .308 Win.JPG .225 Winchester center with .223 Rem (left) and .308 Win (right) USA Rifle Winchester 1964 .219 Zipper rimmed, bottleneck .224 .260 .406 .422 .473 .049 1.930 2.50 1-12" Large rifle 50,000 40 SP 4020 1436 50 SP 3768 1577 55 SP 3643 1621 60 SP 3428 1566 24" Hodgdon http://data.hodgdon.com/cartridge_load.asp 225 Win data Hodgdon Data.hodgdon.com 2012-05-22 dead https://web.archive.org/web/20071111143616/http://data.hodgdon.com/cartridge_load.asp 2007-11-11
The .225 Winchester / 5.7x49mm cartridge was introduced in 1964 by the Winchester Repeating Arms Company.
Description
The .225 Winchester cartridge was derived from the .219 Zipper case, though its rim diameter was reducedPage Warren Thunder and Lightning Field & Stream July 1970 LXXV 3 68 https://books.google.com/books?id=GjBdQOZaWiYC to accommodate the standard .473-inch bolt face. It was developed with the goal of supplanting the .220 Swift, a cartridge that had earned a reputation for accelerated barrel erosion. Although the .225 Winchester featured a more modern, straight-tapered case design, it was ultimately overshadowed in popularity by the older .22-250 Remington,Trzoniec Stan 2016 .225 Winchester https://www.bergerbullets.com/articles/stan-trozniec-225-winchester.pdf January 27, 2026 Rife Magazine 43-47 which had already gained widespread acceptance as a wildcat cartridge before being commercially standardized one year later.
Factory rifles chambered for the .225 Winchester were produced by Winchester—notably the Model 70 and Model 670—as well as by Savage Arms in the Model 340..225 Winchester | Handloader Magazine https://www.handloadermagazine.com/225-winchester All mass-produced firearms offered in this chambering were either bolt-action or break-action designs. Winchester discontinued rifle production in .225 Winchester in 1971;225 Winchester | Black Dog Ammunition 22 January 2022 https://blackdogammunition.com/product/225-winchester-2/ however, the company has continued limited seasonal manufacturing of factory ammunition and cartridge cases. Reloading dies remain commonly available, and cartridge brass can also be formed from .30-30 Winchester cases with appropriate modification.
The .225 Winchester's case is a parent case for some of SSK Industries'Richard A. Mann Frank C. Barnes Cartridges of the world : a complete and illustrated reference for over 1500 cartridges 2012 Krause Iola, Wis. 978-1440230592 228 https://books.google.com/books?id=3_-kUkNXTNwC&pg=PP1 13th popular line of JDJ cartridges designed by J.D. Jones, chosen for its strength and semi-rimmed design which makes it well suited for use in break-open actions.http://www.sskindustries.com/cartridges.htm https://web.archive.org/web/20100328042952/http://www.sskindustries.com/cartridges.htm 2010-03-28 Mr 2010-03-28 2012-05-22 dead
See also
.224 Weatherby Magnum
5 mm caliber
List of rifle cartridges
Table of handgun and rifle cartridges
References
.225 Win data at Accurate Powder
External links
.225 Winchester at Chuck Hawks
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