475 Nitro N2

[laurent]

Good evening,
I have a few question about this cartridge:
I don't know if it is a .475 Nitro N2 3"1/2 r a .475 Jeffery N2 3"1/2?
overall lenght: 104,7 mm
case lenght: 88,8 mm
mouth diameter : 12,5 mm
rim diameter: 17,1 mm
approximative year of manufacture?
thanks for answer
laurent

 

[smle2009]

This may be some help to you. http://www.kynochammunition.co.uk/cartridge collection.html

 

[SHAKY]

The .475 no.2 NE and the .475 no.2 Jeffrey are the same case. The bullet diameter of the Jeffrey is .489 while the .475 NE is .483. Also the overall length of the Jeffrey is 4.33 in., the .475 NE is 4.26 inches. So the Jeffrey is a bit longer cartridge with a slightly larger heavier projectile. Also for comparison would be a .450 no.2 NE , bullet diameter .458 and overall length is 4.42 inches.
I think yours is a .475 no.2 Nitro Express. The Jeffreys' projectile would protrude farther out compared to the .475 no.2 NE. Many of these cases are very similar in appearance only differing in size slightly.

 

[ydnum303]

The Jeffery round usually has a J in the headstamp; i.e., KYNOCH .475 No.2 J NITRO. I do not know if Eley's put a J in their headstamps, obviously the box would be clearly labelled to show that the rounds inside were either for the Jeffery or the other gun, but it does not automatically follow that the rounds would be similarly marked.

However, as these rounds were for double rifles, and if you used the wrong ammo it would not shoot to the expected point of impact, I suspect that the rounds would be marked. Perhaps someone on here can show us an Eley headstamp for the Jeffery cartridge.

As Eleys stopped making rifle ammunition when they were merged into Explosive Trades in about 1920, and were probably too busy with war work from 1914, your round is probably from the late Edwardian period.

Regards,
Roger.

 

[laurent]

Thank you all for your replies,
Sorry for measurments in millimeter...
Here they are in inch:
overall lenght: 4.122
case lenght: 3.49
bullet diameter: .492
So it seems that the bullet is larger and the case is shorter than both cardridges.
loonking closely to the cartridge, I can note that the neck is a little bit larger where the bullet take place than just over the shoulder. Could it be a bullet of .500?
Best regards
Laurent

 

[SHAKY]

The case length at 3.49 - 3.50 is correct for the .475 no.2 NE or Jeffrey. The overall cartridge length is closest to the .475 no.2 NE. With a difference of .138, maybe the projectile is a bit further in the case, or there may be a slight difference in design of the bullet compared to the more modern tables from where I see the standard reloading dimensions. The bullet diameter is almost a perfect match with a difference of only .009.
I can only say that it most closely resembles the .475 no.2 Nitro Express dimensionally.

Cheers, Shaky

 

[laurent]

Thank you very much for these informations shaky
Regards
Laurent