The rifle is a Zastava M70 with a 24inch barrel. JD
I have one of those as well. It should like the heavier bullets as the twist is 1:220mm (1:866). I pushed a tight patch through mine to confirm it.
"An archer sees how far he can be from a target and still hit it, a bowhunter sees how close he can get before he shoots." It is certainly easy to use that same line of thinking with firearms. -- Unknown