375-338 WINCHESTER MAGNUM - Cartridge Collector

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375-338 WINCHESTER MAGNUM

The specimen above was made in South Africa by OPM. It has a shorter neck than the Quality Cartridge version

Also known as the 375/338 Chatfield-Taylor or the 375/338 Belted Newton. It was developed by RF Chatfield-Taylor of .416 Taylor fame, another great wildcat calibre. This wildcatting thing can become very confusing:

The 375/338 Win Mag is based on the 338 Win Mag case necked up to .375
It is also known as the 375/338 Chatfield-Taylor
It is also known as the 375/338 Belted Newton
It is very similiar to the 375 Epstein, which is based on the 338 Win Mag case
It is also very similiar to the 375 Taylor, which is a 338 Win Mag necked up to .375, or a 458 Win Mag case necked down to .375

The following is from P.O. Ackley’s “Handbook for Shooters and Reloaders”, Volume One:

“The .375 Durham Magnum is the .338 Win Mag case necked up to .375 with a 35 degree shoulder angle to provide a very fine short .375 Mag cartridge with an overall length suitable for use in the standard actions. Balistics are practically the same as the standard .375 H&H Mag. (This book was first published in 1962!)