| Rothhammer1 |
| (.400 member) |
| 03/12/18 07:24 PM |
|
Re: Westley Richards .375/43/270 Proprietary Cartridge
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Quote:Maybe...But what about the W-R Catalog which lists a new load at 2200 fps? Are we trying to unscramble an egg here?
This may be 'splitting hairs' a bit (and doesn't matter much) but I'd say, with the Westley Richards .375 2.25" NE dating from 1908 and the MS 9.5X57 from 1910, that the MS is an 'upload' of the WR .375 rather than vice-versa.
Optimism?
Notice there's no powder load shown to go with the '2200' claim.
That ad dates from 1909, the Westley Richards catalog of 1937-38 shows the Westley Richards .375 Rimless loaded at 43 grains for 2100fps with the MS loads at 45 grains for 2200fps.
What I've long found to be interesting is that every British nitro proofed M1910 Mannlicher Schönauer that I've seen images of, as well as my own, is stamped "CORDITE 43-270 MAX" while the commercially available 9.5X57MS cartridges were loaded at 45 grains.
Here is a discussion of these on the International Ammunition Association Web Forum: IAA Forum