.375/303 Westley Richards Accelerated Express (original) (raw)
The .375/303 Westley Richards Accelerated Express, also known as the .375/303 Axite, is an obsolete medium bore rifle cartridge. It was a high velocity, rimmed, bottlenecked cartridge. It was loaded with Axite, a new smokeless powder developed by Kynoch and said by them to be "comparatively free from erosion and corrosion effects". The cartridge's power was considered about the same as the .300 H&H Magnum.