Defence Industries WW2 9mm Ammo

[bruno38]

Recently acquired these 9m/m WW2 ammo in box
Found they were made in 1943 by Defence Industries Limited in Verdun/Montreal
Likely intended for submachine guns (feeding 2 mags of 32 cartridges each)
With the triangular primer crimp as a factory variation

Question : Collectibles? - How common (or not) are they?

Besides, would 28/5/43C mean "28 May 1943 Canada"?

Thanks for your help - Pictures for your perusal...

 

[Ganderite]

They are collectable. No idea as to value.

 

[Komodo]

They would look nice beside my STEN

 

[LUTNIT]

I remember seeing those same boxes at a gun show in the last year or two. If memory serves the guy was asking not quite twice of what new factory ammo cost at the time. I'm not into collecting so didn't get any and was just looking for ammo to shoot. He had piles of them and I don't know how many he sold at that price. They weren't flying off the table at any rate.

 

[albayo]

I have seen those rounds before, I can't remember if I had some or someone else them.
I could be wrong but the three staked triangles aren't that common.

 

[cement head]

They are some what collectable . they are if I'm not mistaken also corrosive and loaded warm. I heard years ago an old friend of mine shot some out of his Beretta and it didn't do the pistol any justice. if you going to shoot it use it in a High power cz 75 or 9mm 1911.

 

[Duck_Hunter]

Shot off hundreds of those in the last couple years through a g17. No corrosion issues but they are definitely loaded hot.

 

[Shooting Centre]

I don't think any Canadian ammo used corrosive primers in WWII. Also Mk 1Z ammo is not particularly hot, certainly lower pressure than 9mm NATO spec.

 

[tiriaq]

DI Boxer primers are NC.
Copper Berdans are corrosive.
The three stab crimp is standard on DI 9mm.
That is standard Sten gun ammunition.