cscottrc

I bought a 7.62x39 about a mounth ago & I have several questions. First off, is there something I can do to get rid of the trigger slack. I've seen double hook triggers for sale, but I don't know what they do. I'm also concerned about how hot the berrel gets. If I fired roughly 50 shells in 20-30 min. am I going to dammage the barrel?

I bought a 7.62x39 about a mounth ago & I have several questions. First off, is there something I can do to get rid of the trigger slack. I've seen double hook triggers for sale, but I don't know what they do. I'm also concerned about how hot the berrel gets. If I fired roughly 50 shells in 20-30 min. am I going to dammage the barrel?