12-12-2013, 01:49 PM
Fair enough, I'll look forward to hearing more later then.
My thoughts are that unlike say a Rem700 where the bolt lugs are part of the receiver, and so the mating and squaring of the barrel with the receiver is critical, an AR barrel comes complete with barrel extension already mated and hopefully squared. So, a solid link between the barrel and the upper is important for the sight system sitting on the top, and in general holding all together, but not like a bolt gun.
I'm thinking if the fit is sloppy prior to torquing-up the barrel nut, or as '52' is showing in the first photo, not square, then some sort of filler material could mitigate the potential for inaccuracy. Perhaps your Locktite, or even two-part metal epoxy like JB Weld or Devcon. Unlike stock bedding however the potential for glue starvation is pretty high with tight fits squeezing it back out so I am unsure how much support it would give the interface after you torque up the barrel nut.
My thoughts are that unlike say a Rem700 where the bolt lugs are part of the receiver, and so the mating and squaring of the barrel with the receiver is critical, an AR barrel comes complete with barrel extension already mated and hopefully squared. So, a solid link between the barrel and the upper is important for the sight system sitting on the top, and in general holding all together, but not like a bolt gun.
I'm thinking if the fit is sloppy prior to torquing-up the barrel nut, or as '52' is showing in the first photo, not square, then some sort of filler material could mitigate the potential for inaccuracy. Perhaps your Locktite, or even two-part metal epoxy like JB Weld or Devcon. Unlike stock bedding however the potential for glue starvation is pretty high with tight fits squeezing it back out so I am unsure how much support it would give the interface after you torque up the barrel nut.