@ Unknowns

[EODGUY]

I have two more rounds without a definite identification. The first is a 25x110mm rimed case with an armor piercing solid steel projectile. It has a groove around the cartridge case which I am thinking says it is a practice round. There are no markings on the projectile or the case. The second round is all aluminum with a steel insert. The marking on the projectile is MANIP. PATR., which I understand. Is there a model number to it and what country made it? My dimensions may be a little off.

 

[SG500]

Hi Bob, I can't help you with an ID but just to confirm I used to have an identical 25x110 round, same case type (but tarnished a lot more), same style primer, same projectile, same groove around the case, also no markings.
Dave.

 

[ron3350]

Interesting cartridges.
Can you give any or all dimensions of both rounds?
MANIP. PATR. could possibly be Swiss.

 

[kahu1]

The second round looks like a 24 x139mm Manip. Patr. dummy for the Swiss Tankbüchse 41 antitank rifle.

 

[EODGUY]

Sorry about the lack of dimensions. Should know better!! One the brass cased round: Rim diameter is 39mm, head diameter is 35mm, neck OD is 27mm. The solid aluminum training round: rim diameter is 31mm, head diameter is 32mm, neck OD is 25mm, projectile diameter is 24mm. Suspected this round was a 24mm Swiss round, but had no round to compare it to.

 

[ron3350]

I found this same Swiss 24 x 139 AT Dummy in my collection. The dimensions you gave at the start were wrong and this shown the importance of correct dimensions when asking a question.
This Dummy also exists with a groove or thin knurl on the body.

 

[EODGUY]

Hi Bob, I can't help you with an ID but just to confirm I used to have an identical 25x110 round, same case type (but tarnished a lot more), same style primer, same projectile, same groove around the case, also no markings.
Dave.

So now we have two frustrated collectors.

I found this same Swiss 24 x 139 AT Dummy in my collection. The dimensions you gave at the start were wrong and this shown the importance of correct dimensions when asking a question.
This Dummy also exists with a groove or thin knurl on the body.

In my initial post I erroneously did not give dimensions of the aluminum round. The dimensions were for the other round shown. So aside from my error in omission, I think you made an error also.

 

[ron3350]

EODGUY
Please do not take offence as I loved your items and please shown more of them.
I meant the caption dimensions for the 23mm under your first photo so yes I made an error. Your dimensions were for the first unknown shell as stated.
If I could have seen the actual engraving on the projectile I could ID it instantly and helped you.
There was an experimental Swiss 23mm round and this confused me.

I show 2 Swiss Dummy 24 x 139 AT rounds. I only have the one like yours. Cheers. Ron.