As I have mentioned several times, I am in the process of building a rifle and this is my first upper build. I have everything but the barrel which should be here within the month I hope. The way I understood the correct way to install the barrel was to use anti-seize compound on the threads and to tighten the barrel nut to 30 ft/lbs and then loosen it up and retighten it and repeat that 3 times to allow the barrel to seat correctly. Then to tighten to 35 ft/lbs before going just a little bit farther to align the gas tube holes. The forearm I have is a YHM customable 12" and the instructions say to just tighten the barrel nut hand tight and them enough farther to align the gas tube holes. They don't mention any anti-seize compound or anything else and skip the tighten/loosen thing. I read on another forum that someone questioned them on that and they said it wasn't necessary unless your using a steel barrel nut and their's is aluminum. This is going to be a target rifle so I'm not planning on taking it into battle so the aluminum doesn't bother me. I plan to do it the way I planned to begin with but was just wondering. Is the anti-seize compound not necessary because the barrel nut and receiver are both aluminum and not dissimilar metals? Is the tighten/loosen thing still a good idea?