The first attempt at the shooting range was unsuccessful, likely because the gas block was not being installed correctly, resulting in reduced gas flow. After taking 20 manual single shots, a shell became stuck inside the chamber, so I will have some extra work to do. The new setup has been made with one of my spare Yugo rifles.
Also, I removed the Yugo short barrel and adjusted the gas block along with the chamber honing but I'm not sure if I will put it back because the Russian barrel is in excellent condition and will fit perfectly with some tricks.