My first time out, I used Tula 7.62x39 and got about 33% duds. I was worried that the firing pin spring might be too weak. I joined a great Club that has a 100-yard rifle range. I took it out yesterday before Trap using Golden Tiger Ammo. No FTF's - perfect operation. I'm 60 and wear glasses. You can see 3 hits......2 you can't see are in the black. Not super shooting but for me and iron sights at 100-yards.....pretty darn good. I love this rifle. I should have shot it before the Har-Bar but I wasn't that smart. I'll say this.....the Har-Bar sure can't hurt you any! Funny- one guy at my Club loves Tula for his AR? Maybe I got a bad batch?