I only had 42's in my batch: i can only imagine the horrors you must have faced considering i had nearly 100% hangfires with it. Get some PPU from AIM, save the trouble. IMO surplus is not cheaper than normal ammo enough anymore for me to be willing to put up with hangfires/sticky cases/burrs in case neck/whatever other issue it happens to have. It was worth it earlier this year but now... forget it. I'm shooting PPU/Igman/S&B.I found the 42 headstamps to be less of a click bang than the 43 dated headstamps. The 43's were 80% or more click bang and even the occasional dud.