Ha ha, interesting always to see historical propaganda and PR BS. But maybe they are 'extending' it a little, by suggesting the "new rifle" is the "Mauser .318 Accelerated Express Magazine Rifle" ...

Never know though, what some makers thought of how gullible the market was ...

Still happens today.

How magnum belts on cartridges suddenly became, "must not have's" on any firearm to be used for any sort of hunting if one did not want sudden malfunctions ... after people used magnum belts for probably 80 years ...

Or the "need" for short fat flat sharp shouldered cartridges ...