25 X 105 Canadian Recoilless round

[SG500]

I was pleased to add this one to the collection recently.
I understand its Canadian and from the 1960's.
That's about all I know about it.
If anyone has any further information or examples I'd be interested in hearing from them.
Note the way the rim steps down from the main case - the rim is only 25.3mm!!
The ring in the photo has several small holes in it and fits inside the case.
All INERT/empty/unscrews etc.
Dave.

 

[HAZORD]

Interesting round Dave! The projectile looks a bit large in relation to the powder chamber, for a recoilless round. It does have minimal rotating bands though, which would make sense. Will be interesting to hear more about it when info is available.

John

 

[Tony Williams]

Very interesting - I've not heard of anyone putting together fin-stabilised and recoilless features in such a small calibre.

 

[SG500]

Thanks guys, i'm trying to get some info out of Bill, apparently he has some.
Tony I'm sure there was something about this in the ECRA journal some time ago - not photos but a line drawing, I'll have a search through the huge pile of ECRA stuff I have.
Dave.

 

[Tony Williams]

The only recent (i.e. the last 5 years while I've been editor) one like this I can recall is the 20mm Davy Crockett spotter in issue 507 (July 2007) which fired a similar-looking projectile but from a non-RCL, bottlenecked case.

 

[SG500]

That could have been the one I asked about in ECRA.
I'll look again Tony.
Dave.

 

[2pounder]

25 x 105

I have a list of 20mm and larger ECRA references by cal., from Dec 1996 no. 379 and first 10 yrs but can find no ref for the 25 x 105. Might have missed it but dont think so, am prepared to be corrected though. 2pr

 

[SG500]

I have a list of 20mm and larger ECRA references by cal., from Dec 1996 no. 379 and first 10 yrs but can find no ref for the 25 x 105. Might have missed it but dont think so, am prepared to be corrected though. 2pr

Hi its in the cartridge listing in the WD de Hek books. There is also a write up in the IAA journal that I'll dig out and study - apparently its the IAA Journal 438, Jul-Aug 2004, but just showed a patent drawing from IAA 433, by Frederick Kempler of Ontario (Patent 2,818,811, Jan 7, 1958), assigned to Levy Auto Parts Co of Toronto.

I'll post more info if I find any.

Dave.

 

[SG500]

I have a list of 20mm and larger ECRA references by cal., from Dec 1996 no. 379 and first 10 yrs but can find no ref for the 25 x 105. Might have missed it but dont think so, am prepared to be corrected though. 2pr

Forgot to say thanks for looking into it for me 2 pounder, I spent ages looking through the ECRA stuff only to find it was IAA!!
Dave.

 

[CampX]

Thats an odd one, I was trained on the Canadian 106mm Recoiless Rifle..never heard of a 105 mm RR

Dean

 

[SG500]

Thats an odd one, I was trained on the Canadian 106mm Recoiless Rifle..never heard of a 105 mm RR

Dean

Hi Camp X, its a 25mm (calibre) X 105 (case length) - a lot smaller than what you were trained on. I've got some info on this but am trying to get permission to put it on the forum from the publishers.
Dave.

 

[SG500]

More information about 25 x 105 round.

Just got permission off the author and IAA to put this info on the forum so thanks to Paul Smith:

Attached is the information.

Dave.

 

[SG500]

Just got permission off the author and IAA to put this info on the forum so thanks to Paul Smith:

Attached is the information.

Dave.

One thing I should have clarified, the IAA is the International Ammunition Association who kindly gave permission for the information to be published and their web site is as follows:
http://www.cartridgecollectors.org/
Dave.