Thread: School me on the 7x57 mauser

Originally Posted by Tentman

I don't know what crap sources JD bases his opinions (or load data either for that matter) but it was called 275 Rigby as a marketing term nearly from the get go (or is this picture "fake news" too)

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Dicko is a lot closer to the mark on safe and sane reloading expectations for it, it simply isn't designed to run at 65,000psi, and promoting loads running it at this level will eventually cause some poor bugger to have a disaster.

An aggressive response. Fairly normal on this forum lately. My opinions are my own, but I have a large library of old books and catalogues. Please Look at your picture and what it's telling you. Im not sure you've fully understood my point. My point is that Rigby has nothing to do with the name of the .275. It was just called the .275. The same way we might call a .303 a .303.

The 7x57 wasn't called the .275 Rigby as a marketing term. It was never called that at all. It's not called that on those ammunition packets in your photo either.

Those are Rigby brand ammunition packets. They are packets of Rigby ammo for what the company describe as ".275 cartridges." Of course Rigby sold ammunition for the .275 - and for other cartridges too. (originally repackaged ammo made by German maker Roth. Later repackaged Kynoch.) But the cartridge is not called the ".275 Rigby". And my sources are not crap, they include Rigby themselves, those packets are branded Rigby, but the cartridge is the ".275 Bore" or the .275 High velocity (loading) The rifles were never marked ".275 Rigby", they were marked .275 Bore, which was the common name for the 7mm Mauser, and the ledgers the company kept for sales referred to .275 only as .275 "high velocity sporting" for the rifles sighted in for 140 grain load, and just .275 for the standard load

(If you have the cartridges that are in those Rigby packets and didnt steal the photo off the internet, you can easily have a look and see what the cartridges cases are headstamped. Ten dollars say they all say 7mm Kynoch.)

Kynoch themselves who made ammunition for the entire British market for decades never called the cartridge the ".275 Rigby" it was called the 7mm Mauser - on their packages and on their catalogues. In fact I challenge you, and this is a good way to think about it - to find a headstamp saying .275 Rigby on a cartridge case made before the year 2000.

The Rigby company had nothing to do with the cartridge or its name other than they sold rifle and ammunition in the chambering. IT was never a proprietary cartridge, they never named it after themselves. No one including them called the cartridge the ".275 Rigby", not WDM Bell, or Jim Corbett, to mention two of the most famous users. The rifles that Rigby sold were marketed as the "Rigby-Mauser system." So if one purchased a rifle from Rigby in 7mm, one might all it a .275 Rigby-Mauser, and the rifles were commonly referred to that way. .275 was the cartridge name, and Rigby-Mauser was the rifle. Same as WDM Bell referred to his 6.5x54 as a "6.5 Gibbs Mauser", not because the 6.5x54 was named the 6.5 Gibs - but because his rifle was sold to him by Gibbs and was a Mauser action.

You could call your rifle a .275 Rigby, and that would mean that you had a Rigby made rifle chambered in .275. But it's not the name of the cartridge.