Help me ID this 8mm WWII ammo

[rocinante]

German markings of P181 XVw1 21 40.

I really want to know how heavy of a bullet and the velocity.

I did a little research and it appears to be armor piercing but I get conflicting info as far as the weight and fps. It has kind of a green casing, the red ring around the primer, Condition looks brand new.

I paid 70 for 330 rounds so it is a killer deal. Hope it still goes pop. A magnet sticks big time to the bullet so I guess it isn't the tungsten core stuff.

This is what I drummed up. Any info would be appreciated.
red around primer = armor piercing

AP has a bullet weight in the 178-180gr range

The ammo used was indeed probably the 7.92x57 S.m.K.H. which was adopted in August 1939. This was loaded to high-velocity v-Munition pressures, with a 194 grain (12.6g) tungsten-cored bullet being fired at around 2,800 fps (850 m/s). Penetration is given as up to 18mm at short range.

P181

Hugo Schneider A.G., Lampenfabrik, Hugo Schneider Straße, 87, Leipzig O 5, Sachsen

XVw1

XV - unknown steel mill
w - cartridge case plate firm
suppose to be a,b,c,d,e but mine says w???

1 - steel analysis code, 1, 2, 3, 4, 6, 8, 9, 10, 11, 12, 15 or 17

21 batch number

40 - year


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[Afy]

That ammo is probably collectable and corrosive.

I found a bunch of german 8 mm mixed ammo fro 37, 38, 39 and 41... I shot up all of it. Now I only have 5 rounds left.. This was ammo found in a field, and worked without an issue.

 

[rocinante]

I am understanding that just about all berdan primed rounds, including the ones claiming to be non corrosive, are corrosive because of whatever it is they put in the primer. Either way no problem because I almost like cleaning guns.

I guess I will try it in my bolt action before I try it in my FN49.

Other info has me believing it is 178 grain but I wish I knew how hot it is loaded.