Can anyone translate "apjäs" from Swedish?

I am doing some research into a little-known 25mm Vickers automatic gun which was made in Italy by Vickers-Terni during WW1 and subsequently sold to the Swedish navy for arming some submarines.

Its initial designation in Swedish service was 25mm Kulspruta M/22 but in 1937 this was changed to 25,4mm apjäs M/22. I know that "kulspruta" means machine gun, but can anyone tell me the significance of the change in designation - what does "apjäs" mean?

Tony Williams
Homepage: http://www.quarry.nildram.co.uk

 

Apjäs is short for artilleripjäs. Pjäs could be used for almost any type of artillery, and artilleri is, well, artillery.

 

Thanks Christian!

Tony

 

i'll just add that pjäs means piece. might be useless info, but still

 

Yes, as a general translation.