SKS Light firing pin strikes
Took my old Chinese SKS to the range today. First 20 rounds fired flawlessly. Suddenly, all subsequent rounds FTF. I noticed light firing pin strikes on those round that FTF. Ammo is not the problem and the gun is thoroughly clean. Thought, I would ask fellow TFL folks if they ever had this problem and what might be the cause. Later this afternoon, I will take the gun apart.
FTF; Fail to Fire.