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Proprietary Nitro Express Calibers
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Which companies developed/introduced the various nitro express calibers. I know H&H developed the 500/465, WR introduced the .476, and I think Jeffrey introduced the .475 No.2, but I have no idea about the many other cartridges out there.

John
 
Posts: 102 | Location: Kingsport, TN | Registered: 21 January 2005Reply With Quote
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There's a difference between introducing it and having it a proprietary cartridge.

Alpin's Any Shot You Want have discussions by the various authors of most of the old NE cartridges.

For starters, there is the Eley version of .475 No.2 and the Jeffery .475 No.2. Different bullet diameters, etc.

Maybe someone else will put forth the effort to describe them all here, just not me! Smiler


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Posts: 19389 | Location: Ocala Flats | Registered: 22 May 2002Reply With Quote
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Here's a start:

Westley - 318 Westley, 400/360 Westley, 476 Westley
Evans - 400/360 Evans
Purdey - 400/360 Purdey, 400 Purdey, 369 Purdey
Rigby - 400/350, 400/350 no2, 450 3 1/4 nitro
Jeffery - 333 Jeffery, 400 3",404 Jeffery, 450 no2, 475 no2 Jeffery, 600 nitro
Holland - 375 H&H, 375 H&H Flanged, 500/450, 500/465
Cogswell - 475 3 1/4

And there are many more.....
 
Posts: 1312 | Location: Texas | Registered: 29 August 2006Reply With Quote
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Thanks,
Anyone know the origins of the .470, .500 3" and .577 3"?
 
Posts: 102 | Location: Kingsport, TN | Registered: 21 January 2005Reply With Quote
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Lang is generally given credit for introducing the 470. I don't believe the 500 and 577 Nitros were ever propritory cartrdges but some one will surely prove me wrong. I think they were Eley creations.
465H&H
 
Posts: 5686 | Location: Nampa, Idaho | Registered: 10 February 2005Reply With Quote
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400/375 H&H
275 H&H
275 H&H Flanged

I think they were all proprietary


What about the 577 3 1/4" NE. Any ideas ?
Was it a Jeffrey creation prior to the 600 Nitro
to prove a concept ?
 
Posts: 3191 | Location: Victoria, Australia | Registered: 01 March 2007Reply With Quote
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470 Evans is correct.

The 500 and 577 were black powder cartridges before Cordite, along with the 450 3 1/4" and the 450/400 3 1/4".
I think they were already "Trade" cartridges as black powder rounds..


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Posts: 16134 | Location: Texas | Registered: 06 April 2002Reply With Quote
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"proprietary" could refers to the kind of loading too.
For example also the 450 NE was a very old black powder cartridge. Later it was loaded with smokeless powder and became a proprietary number.
Almost any british caliber was in origin a proprietary number.Later the most succesful ones were chambered by other gunmakers
 
Posts: 110 | Location: Italy | Registered: 26 March 2009Reply With Quote
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quote:
Originally posted by Pivi:
"proprietary" could refers to the kind of loading too.
For example also the 450 NE was a very old black powder cartridge. Later it was loaded with smokeless powder and became a proprietary number.
Almost any british caliber was in origin a proprietary number.Later the most succesful ones were chambered by other gunmakers



Not so as stated by someone above. Eley / Kynoch released cartridges
to everyone in the trade so how can they be classed as proprietary ?
 
Posts: 3191 | Location: Victoria, Australia | Registered: 01 March 2007Reply With Quote
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