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Hello,

The 7x57 in a Standard 30-06 lenght action, plus their original C.I.P. chamber design, with 20 mm distance from the chamber mouth to the rifling start. So, it can be loaded, at least, at the same cartridge OAL than the .270 Win and 30-06. This is what I use in mine, made in a 1935 Mauser-Werke action and a S.J.G. new military barrel made for the Chilean Mausers. A kind of a 7mm Creedmoor...The base of a Nosler Partition 175 grs at the shoulder-neck case line.
Loaded that way, the REAL diference with the 7x64 (I had one for 6 years) also in a standard 30-06 action lenght at similar presures and 60 cm barrel, is no more than 50 to 75 f/s with 160 to 175 grs bullets.
Long live to the 7mm Mauser!!!

PH

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So you Weatherby'd your rifle. That is very long throat so the bullet dose not sit below the neck. It is what I have done to most of my rifles and the difference this makes is quite pronounced. I did not have to have that done to my Steyr Pro Hunter. Seems to come with a long throat.

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