Assembling Grendel upper, would love any tips/tricks/info to help accuracy

[noone]

Common sense usually tells me that if the torque wrench is nearly maxed out, and the holes still don't line up, to look for another solution rather than continuing to wrench the barrel nut and end up destroying the receiver. So far, the combination of common sense, and paying careful attention to the torque wench settings has paid off. All the rifles I have built work great, are accurate, and I have yet to destroy an upper.

The process I use, is grease the threads well, tighten, loosen, repeat 3 more times (3x is recommended, I go one more), then do your final tightening.