Early .303 Savage cartridges, loaded by Remington for Savage, were loaded with .311" boolitts in the .308" bore.
The 1904 Savage catalog stated: "the tight fit of the metal-cased bullets gives increased velocity and accuracy."
Other US ammunition companies listed loads were:
* Peters (prior to the Inner-Belted): .3084"
* United States Cartridge: .3085"
* Western Cartridge: .3088"
* Winchester: .3085"
.