![45 Remington-Thompson cartridge headstamp](https://upload.wikimedia.org/wikipedia/commons/9/97/.45_Remington-Thompson_cartridge_headstamp.jpg)
The .45 Remington–Thompson was an experimental firearms cartridge designed by
Remington Arms
Remington Arms Company, LLC was an American manufacturer of firearms and ammunition, now broken into two companies, each bearing the Remington name. The firearms manufacturer is ''Remington Arms''. The ammunition business is called ''Remington ...
and
Auto Ordnance for the Model 1923
Thompson submachine gun, a variant of the Model 1921 with a longer barrel, with the intent of increasing the power and range of the weapon.
While some variants of the 1923 were produced, the rifle and round did not find commercial success.
References
{{DEFAULTSORT:45 Remington-Thompson
Pistol and rifle cartridges
Military cartridges
Abandoned military projects of the United States
Remington Arms cartridges