If the M39 sells, I've got a full crate of ammo for it (last 7.62X54R rifle I own) that I can offer the buyer too. The ammo is Czech Silver Tip and is 20rnds per box in a tin + wooden crate.
I will not sell/trade the ammo by itself, if I end up selling the other rifles and keeping this one I'll want the case to stay with it. Once the rifle sells the ammo is on the table.
Eli