- Location
- In the shadows of the Rockies
Lipseys Ruger No.1A 275 rigby
- Thread starter Slimbo
- Start date
- Location
- Lloydminster, Alberta
Walter D.M. Bell surely liked his....
- Location
- Lloydminster, Alberta
Over 800 with the 275
- Location
- Lloydminster, Alberta
I think Rigby had the exclusive UK rights to the mauser 98 action at the time.
- Location
- In the shadows of the Rockies
That would be very cool! A flanged 275 Rigby! Brass does exist -
https://www.tradeexcanada.com/content/7x57r-rimmed-brass-prvi-100
For what it's worth, I have a copy of an old Kynoch catalogue from the '30's here and it lists .275 Rigby and 7mm Mauser separately, and with slightly different ballistics.
At the top is the ".275 Rimless (Rigby)", in both 140 and 173 gr, loaded to 18 tpi pressure. Immediately below it is the "7mm (.276) Mauser (Spanish)", same bullet weights but loaded to 16.5 tpi for the 173 gr. and 18.5 tpi for the 140 gr.
Bell used German DWM ammunition in his Rigby, and used all three names in his books, 7mm, .276 and .275.
At the top is the ".275 Rimless (Rigby)", in both 140 and 173 gr, loaded to 18 tpi pressure. Immediately below it is the "7mm (.276) Mauser (Spanish)", same bullet weights but loaded to 16.5 tpi for the 173 gr. and 18.5 tpi for the 140 gr.
Bell used German DWM ammunition in his Rigby, and used all three names in his books, 7mm, .276 and .275.
- Location
- In the shadows of the Rockies
"...catering for the British preference for calibres to be designated in inches, Rigby called this chambering the .275 bore after the measurement of a 7 mm rifle's bore across the lands..."
"Around 800 of his (Karamojo Bell's elephant) kills were made with Rigby Mauser 98 rifles chambered for the .275 Rigby (a more potent loading of the 7×57mm Mauser cartridge),..."
"...used 11.2-gram (172.8 gr) long round-nosed military full metal jacket bullets for reliable penetration..."
https://en.wikipedia.org/wiki/7%C3%9757mm_Mauser
Chalk another one up for Wiki.
Very interesting cartridge and history, thanks for sharing. Used by the great hunters during the golden era of African hunting.
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I'm going to check my shop to see if I still have a piece of headstamped .275 Rigby brass fireformed in my Rigby chamber and mic it in comparison to 7X57 brass fireformed in my M77 MKII 7X57 chambers... I am pretty sure what I will find. I do know that the internal volume when using RL-19 was within 1/10th grain of each other.
I had an English gunsmith tell me the same thing; the name change was to circumvent prohibitions on military calibres. He mentioned Mexico specifically, but I don't know how much truth there is to it.
