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Hello 93x64mm,

According to the Handloader's Manual of Cartridge Conversions, you can make 11.2x72 cases from 404J brass. Case capacity in water is virtually identical. Also some old Bertram brass measured .441. The new stuff measures .436. Spinning a 404J case in a lathe and touching the head with a file will easily remove a couple thousands from the head dia. Then simply cut a new rebated head with extractor groove.

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Harald Wolf in Hatari Times writes about the conversion 404 Jeffery cases in 11,2x72 cases, noted however, that the process would be very difficult. Nevertheless, you might have to take a critical look at that. Harald Wolf found some things very difficult for non-professionals, including reloading 500 Jeffery cartridges for example.

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Thanks for that grandveneur - handy to know
I read somewhere that Jack Lott used .404J brass for the .425WR & just changed to an opened up bolt rather than use the .425WR brass if it wasn't available.
I think it was in his Big Bore magazine article.
Would certainly apply for this 11.2 as well

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