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Design and history::.38-40 Winchester

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Bullet::btype    Caliber::similar    Length::action    Cowboy::origyear    Weight::location    Edition::title

Design and history It is unclear why this cartridge was introduced as it is very similar to the .44-40 from which it was derived. It has approximately {{safesubst:#invoke:convert|convert}} less muzzle energy, and has a muzzle velocity about {{safesubst:#invoke:convert|convert}} less than the .44-40. The bullet differs by only .026 inches in bullet diameter and {{safesubst:#invoke:convert|convert}} in standard bullet weight from the original .44-40. The goal may have been to reduce recoil while maintaining a similar bullet sectional density.<ref name="petloads2">{{#invoke:citation/CS1|citation |CitationClass=book }}</ref> One unusual design element of this cartridge is that factory ammunition was loaded with a different case profile than the standard chamber for this cartridge, factory ammunition having a much longer neck than the standard chamber. Most reloading dies are designed to size fired brass to the chamber specification rather than that of the original factory ammunition case profile.<ref name="speer13" />

The renewed interest in this caliber can be explained by the increasing popularity of Cowboy Action Shooting.<ref name="speer13" /> Several single-action revolvers have recently been chambered for this cartridge, including the Ruger Vaquero. Most modern reloading data for this cartridge is found in the handgun section of reloading manuals.


.38-40 Winchester sections
Intro  Design and history  Performance  Synonyms  References  

Design and history
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