AR- 15 barrel torqe

[Gunstocker]

Can anyone tell me why an ar15 barrel is suposed to be torqed to 30 foot pounds. A bolt gun set-up for compition will generaly shoot best with very little torqe on the barrel threads. Has anyone out there experimented with less torqe on ar15's.

 

[metro25]

The slamming of the bolt to the barrel extension during cycling is enough to lossen the barrel nut. HTH