Doesn’t explain why mine jams on the first round and every round after. Got a pile of steel cased .223? Buy an AK chambered for it.
Mine did too if I didn’t start with a clean chamber.
Otherwise, you might have a tighter chamber that what I do. I’d recommend what NVDave said and check the specs of the chamber.
Didn’t even know that they made “chamber casting alloy” and I have to say that is pretty cool.
Or, get a .223 AK. Never hurts to have more guns.