i remember we used to get an ammo can or two of it at the chantilly gun show for almost free years back and go to sleepy creek and shoot it all. don't remember any issue. but we didn't reload not shoot it for extreme accuracy.
Igman, with the pink primer sealant and IK headstamp, has SUPER small flash holes. You will need BR decap pins, and even they are sometimes too big. I sort out these cases and scrap them.
The ammo is blasting grade m193. Works well out of m4 and m16. In a quality barrel, accuracy is on par with lake city on a good lot.