| Clark |
| (.275 member) |
| 25/02/09 05:57 AM |
.275 Rigby
|
Hello,
I have always thought that .275 Rigby was the British designation for the 7x57 Mauser caliber but according to CIP they are two different calibers and also in Cartridges of the World there are small differences in the case measurements.
I also had a discussion with a helpful man at a cartridge company who even said that the two calibers had different maximum pressures, 3200 BAR for the .275 and 3700 BAR for the 7x57 Mauser if I remember correctly. He didnīt recommend the usage of 7x57 Mauser cartridges in a .275 Rigby rifle.
Is it maybe just the .275 High Velocity cartridge with 140 grain bullet that is considered a different caliber? I thought that the actions were imported to England with barrels chambered in 7x57 and Rigby then put sights on them, engraved and stocked them.
Is there anyone here who can enlighten me?
/C