i have the same problem, because i was using reload. however, push the op rod all the way in so the ammo will chamber. that's what i did and it works.I have a norinco M14 and it is having a missfire issue. It looks like the breach is not closing properly and when the firing pin goes forward the primer is struck but not hard enough to make it fire.
WTF??
as stated... the oprod needs to fly home with "authority"
the rifle is designed for the oprod to do all the work in chambering a round other than you pulling it back and letting it fly home...... it basically slams the round into the chamber. do not fire the gun if you have to close the bolt by hand...... take it back to where you bought it... plain and simple