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What is a 9X23 Winchester?

Author

Mia Smith

Published Jun 21, 2026

What is a 9X23 Winchester?

Since the beginnings of the 9X23 Winchester cartridge, I’ve thought it was an incredible cartridge for self- defense. With true 357 Magnum velocities from a 5 inch 1911 pistol; it is packable as a concealment /defense/social pistol and highly effective on humans when proper anti-personnel ammo is used.

Is 357 Sig going away?

357 Sig is dying. The known number of issuing agencies, however, is not known. But, it seems as if the main argument as to why they seem to be in decline in an official capacity is not because of a lack of effectiveness, but because . 357 SIG is not cost efficient.

Do they make a 38 automatic?

38 ACP (Automatic Colt Pistol), also known as the . 38 Auto or 9x23mmSR, is a semi-rimmed pistol cartridge that was introduced at the turn of the 20th century for the John Browning-designed Colt M1900. It was first used in Colt’s Model 1897 prototype, which he did not produce.

Does Winchester make a 9 mm?

The 9mm Winchester Magnum, which is also known as the 9×29mm, is a centerfire handgun cartridge developed by Winchester in the late 1970s. The cartridge was developed to duplicate the performance of the . 357 S&W Magnum in an auto-pistol cartridge.

What is the difference between a 9×23 and 357 SIG?

Glock chambers several models in the powerful .357 SIG, but the 9×23 Winchester has a performance edge, and since the 9×23 Winchester case has a smaller diameter than the .357 SIG case, which is based on a .40 caliber case, you can get more 9×23 Winchester rounds in a magazine of the same length.

What is a 9×23 Winchester pistol?

It delivers .357 Magnum performance in a semi-automatic pistol. In simplistic terms, the 9×23 Winchester is a stretched out 9mm Luger (pictured). Both are tapered cartridges with nearly identical neck, head and rim dimensions.

What is the difference between the 9×23 and the 9mm Luger?

Winchester’s 9×23 brass has an extra-thick case wall that allows this cartridge to run at high pressure without concern of a case blowout in the unsupported region of a conventional, non-ramped barrel. The 9×23 is also a longer cartridge overall, and requires a full-sized pistol frame whereas the 9mm Luger can be housed in small-frame pistols.

How much does a 357 Magnum cost per round?

When this article was written, the lowest per-round cost for a .357 Magnum was $.24, while the .357 SIG was $.37. At the highest, both the .357 Magnum and SIG was $1.90 per round. Looking at similar products, we see that the .357 SIG seems to hold a slight advantage.