interesting. Learn something new every day. i've never seen one of these rifles that wasn''t an intermediate length like the FN 24 action.
That is the exact opposite of my experience.

All the Zastava commercial actions I have had (Interarms, Herters, KBI, etc.) were standard length until the middle of last year.
I picked up 14-15 of the M-70s imported by ATI in South Carolina.
Expected them all to be standard length. It wasn't until I was sorting parts (disassembled them) that I noticed that several were intermediate length.