Hi Guys, I just got my Saiga 12 about 3 weeks ago so I am still learning how this gun works. I have already converted fire control group and replace the stock and all. Now I also know about how Saigas tend to not run weak rounds well so I also bought and auto plug by TAC 47. The first time I shot it with Winchester buck shot and it ran well. A few turns on auto plug and it ran smooth. So I took it out today and ran Federal slugs through it and I was having FTF issues. I put in the Winchester back in that ran fine the first time and it was doing the same. Now the FTF were not every time I could get 3 to 4 shots off and then it would not fire. The rounds looked like they seated fully and nothing but a click from the trigger. I removed the round and cycled the gun again and it would work like I said 3 to 4 more rounds and then FTF. Any hints you can give would be very much appreciated.