9x135

9x135 is a designation that would imply a 9 mm diameter bullet seated in a case about 135 mm long. However, there is no widely documented or officially catalogued cartridge by this exact specification in major reference sources. Standards bodies such as SAAMI (the United States) and CIP (Europe) do not list a 9x135 cartridge, and there is no consensus on its existence or specifications in mainstream firearms literature. As a result, reliable, verifiable details about its intended use, performance, or firearms chambered for it are not available.

If a 9x135 cartridge did exist, the combination of a 9 mm bullet with a 135 mm case would be highly unusual. A case that long for a 9 mm projectile would imply a substantial powder capacity and the potential for very high chamber pressures, or alternatively a specialized, proprietary design. In practice, most 9 mm-based rifle and subsonic rounds use much shorter case lengths, and the longest widely known examples differ significantly from 135 mm. Without credible sources or weapon examples, any discussion of ballistic figures, loading data, or practical applications would be speculative.

In summary, 9x135 is not a recognized or well-documented cartridge in standard catalogs. It may, at times, appear in informal discussions or misidentifications, but authoritative information is not available. See also the broader lists of rifle cartridges and 9 mm caliber variants for context.