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Gizord1 04-23-2013 02:34 AM

4 Attachment(s)
So, at this weekends military collector show, I got a few neat goodies, as always. One of these neat things was a piece of artillery shrapnel I found in a $1 box. It's once piece of copper with deep rifling. I was looking over it a few minutes ago, and surprisingly I found writing etched in it! It looks like someone scratched the words "mount sect" on the back (I'm pointing at it with a pencil in the pics). Can anyone tell me what it possibly came from, and what "mount sect" could mean?

c3shooter 04-23-2013 02:51 AM

Here is what I CAN tell you-

Being made of steel, artillery shells will not engage the rifling in the bore very well, And if they did, barrel life would be about 5 shells, and rifling but a faint memory.

For that reason shells have a couple of copper alloy driving bands. The shell is slightly smaller than bore diameter, Those raised copper bands, slightly larger. When the propellant fires, those acts as piston rings, and, being softer than the barrel steel, are gripped by the rifling, engraved by the lands (leaving the marks you see).

To a true cannon cocker, what you have there is not shrapnel, but frag, or fragments of a shell.

Gizord1 04-23-2013 02:52 AM

Quote:

Originally Posted by c3shooter
Here is what I CAN tell you-

Being made of steel, artillery shells will not engage the rifling in the bore very well, And if they did, barrel life would be about 5 shells, and rifling but a faint memory.

For that reason shells have a couple of copper alloy driving bands. The shell is slightly smaller than bore diameter, Those raised copper bands, slightly larger. When the propellant fires, those acts as piston rings, and, being softer than the barrel steel, are gripped by the rifling, engraved by the lands (leaving the marks you see).

To a true cannon cocker, what you have there is not shrapnel, but frag, or fragments of a shell.

Alright, thanks!
That's some piece of info.
Now if only I could figure out what the etching means.

Gizord1 04-23-2013 03:17 AM

Quote:

Originally Posted by Gizord1

Alright, thanks!
That's some piece of info.
Now if only I could figure out what the etching means.

I think I may have figured it out!

http://www.sbct.army.mil/Mortar-Carrier.html

It is hard to tell whether it is "mount sect" or "mount sbct"
If it is the latter, sbct stands for "Stryker brigade combat team"

Gizord1 04-23-2013 03:21 AM

Quote:

Originally Posted by Gizord1

I think I may have figured it out!

http://www.sbct.army.mil/Mortar-Carrier.html

It is hard to tell whether it is "mount sect" or "mount sbct"
If it is the latter, sbct stands for "Stryker brigade combat team"

Oop, its artillery, not mortar.
But still, the sbct thing could be the same.


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