JA545--------------------------------------------------------------------------------There are no brass 5.45x39mm cases on the planet. But I resize new 222 Remington brass in a RCBS 5.45x39mm dies and trim to length. Resize .224" bullets in a Lee .221" lube & size die. Then load them with a powder charge half way between the 221Rem Fireball and222Rem for the weight bullet I am using. The 5.45x39mm case capasity is 1/2 way between the two. I sent some 5.45x39mm ammo I made with Hornady 68gr hpbt match bullets to a guy in Califorina. He got sub 1" groups at 100 yards from his East German SSG-85 bolt action 5.45x39mm rifle. I shot them in one of my Romanian CUR-2 AK rifles but was really only concerned about feeding/function and fireforming the brass. I have reloaded the cases twice and only lost 3 of 100 to case splits.for a full length sizing die set #56065 are $119.95. If you are going to shoot the ammo you make in a AK rifle make sure to order some CCI # 41 military spec small rifle primers as regular primers will give you slam fires.Call Lee and special order a .221" lube & size die for $25.