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cupronickle ?

Started by Wade, December 12, 2009, 02:52:29 PM

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Wade

December 12, 2009, 02:52:29 PM
Ok so I mind is a bit fuzzy on this stuff used as a jacket on bullets a mix of copper and nickle ,,but did'nt most get away from this stuff becouse of it fouling the barrle ?or is my memory just fuzzy on this .

TIA

Wade
Got Tired of looking for a Rifle Range So we Dug one up!
WOOF!
4 box's #1 the soap box#2 the letter box #3 the ballot box #4 the cartridge box, The founding fathers picked up the Cartridge box so that WE could use the first 3,,IMO If you don't use those 3 then you dishonour the founding Fathers !

SamD

#1
December 12, 2009, 03:16:18 PM
It would foul barrels but really no worse than gilding metal.
In some ways it is superior but a lot more costly than gilding metal.

Sam

nmmi9100

#2
December 12, 2009, 09:54:24 PM
Pretty sure that's the stuff used on a 7.5x55mm GP11 ammo for a K31 Swiss Rifle...projectiles are all silver colored.

Shoots awesome in my scoped K31, around 0.8 MOA.

-David
Edgewood, NM

SamD

#3
December 12, 2009, 10:15:39 PM
I think you are correct David.
The Swiss weren't cheap about things.

Trivia,
DuPont found that a slight addition of tin to the powder completely stopped fouling with cupronickel.
The powders that had the added tin were the standard numbers with the addition of 1/2
There were a whole series of these DuPont powders 15 and 15 1/2, 17and 17 1/2.
If you ever run across one you'll know what they were. Rectangular cans made of brass with a dinky 1/2" screw on lid

Sam
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