Im about to start reloading ammunition for an old Westley Richards double rifle, chambered for the .318WR. The chamber is somewhat strange, as the brass become very disformed after firing. I therefore plan to convert 30-06 brass and scrap the brass after 1 firing, because they end up so disformed. I was unable to chamber a once fired .318WR cartridge after running it through a .318WR die, because it became to disformed... Because of this "problem" my reloading plans has been stranded for allmoust a year, but I now finally got all the equipment needed.

I now got some .318WR reloading data, but before I start I would like to know if any particulary safety measures has to be made based upon the stamps on the barrels.

They read:

Cordite 37 - 250 max

NP
BV
BP

318 EX

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Any info or comments would be very much apriciated!