Russian 50mm O-822 series

[MINENAZ16]

Hello,

Need help to understand russian 50mm O-822 family regarding external differences.

On pictures two different design.
-1 round head and visible groove on the top of tail.
-2 streamlined one piece body.

In my doc all 50mm are made with one-piece body (O822, O822a, O822sh)

Regards

 

[M8owner]

It looks like both of mine are a third type: single piece body with six fins.

 

[MINENAZ16]

Hello,

Nothing more ?

 

[strakv]

Quote from GRAU:

53-О-822		50-мм осколочная мина (шестиперая) черт. 2-06067 (стальная), 2-06010 (сталистого чугуна)
53-О-822А	50-мм осколочная мина (четырехперая, сталистого чугуна) черт. 2-8308
53-О-822Ш	50-мм осколочная мина

 

[marek_wawa]

There were 3 types of these 50mm mortar rounds
6 fins with solid body (no groove means the fins can't be disassembled - unscrewed)
6 fins with separate fins
4 fins with solid body
Some used M50 fuze with bakelite reduction but mostly they were used MP-82 bakelite fuzes.
M1 fuze seems to be the rarest of all.

 

[M8owner]

You see the M-1 fuses stuck on top of Russian 45mm high explosive shells in the US. I have never seen a document that shows this as proper. I have seen documents showing M50 fuses (with the bakelite adapter) on top of 45mm HE shells is a proper combination. Does anyone have a Russian document showing the M-1 fuse and its proper use on 50mm mortar rounds? I found a supply of 50mm rounds captured and remarked by the Germans.

 

[marek_wawa]

This is field knoledge M8owner but I will look for documentation for you.
I've never met 45mm HE shells with M1 fuzes so this is weird I've seen only KTM-1, KTM-3 or M50.

 

[marek_wawa]

Hi. There were no 45mm HE projectiles using M1 fuze.

 

[strakv]

mostly they were used MP-82 bakelite fuzes.

You mean MP (not MP-82)

This is field knoledge M8owner but I will look for documentation for you.
I've never met 45mm HE shells with M1 fuzes so this is weird I've seen only KTM-1, KTM-3 or M50.

...and KT-1

 

[M8owner]

Thank you Marek. Do you have one of those documents for the 50mm mortar rounds?

 

[strakv]

Here is a drawing showing the round with M50 and MP fuzes

 

[M8owner]

I now have quite a few spare, nice 1939 dated Russian 50mm mortar rounds in the US with M-1 and M-50 fuses in case anyone wants to trade.

 

[Tmine35]

Here a picture showing several fuzes.

 

[marek_wawa]

Tmine35 nice photos. Any documentation about the M-1 fuzer usage in Soviet Mortaes?
Is this a proper soviet 50mm mortar box?

 

[Tmine35]

I have a Finnish manual, dated 1941. The document says that fuzes were in use: M-50, M-1, MP.

The box is original for 50mm mortars. They also had a wooden box for 14 shells, however I have never seen a wooden box.

 

[marek_wawa]

I have a Finnish manual, dated 1941. The document says that fuzes were in use: M-50, M-1, MP.

The box is original for 50mm mortars. They also had a wooden box for 14 shells, however I have never seen a wooden box.

Could you share the manual with us?

 

[Tmine35]

No problem, I'll do it tomorrow.

 

[Tmine35]

Here promised documents.

 

[marek_wawa]

Thank you very much Tmine35

 

[M8owner]

I have noticed in the batch of 50mm Russian mortar rounds that I just received that the M-1 fuses do not fully seat into all the bodies. The fuse sticks up too high - approximately 1/8 inch or 3mm. I noticed in Tmine35's photos above that all the M-1 fused examples seem to have washers to fill in that gap.