Are the barrel threads on the Zastava Mini Mark X (Rem 599, Charles Daly, etc.) the same diameter and pitch as on a Sako L461?

I believe the Mini is 22X1.5. Not sure as to the Sako. Sorry

Mini Mauser is M22 x 1.5mm as Paul said. I've found reference in an old thread on Benchrest.com that the L461 is 22mm x 16 tpi which would be .866 - 16.

1.5mm pitch lead is 0.059" and 16 tpi is 0.0625". One might screw into the other depending on the collective tolerance but I wouldn't rely on it. .003" per rev is more than I'd be comfortable with.