I use blue locktite.
My long range rifle has a Precision Firearms billet upper that I had to heat to get the barrel extension in. I put a very light coating of locktite on the barrel extension and inserted the barrel. I then used a drop on the threads because I only used about 40 ft/lbs of torque on the barrel nut.
This particular rifle will never get to 300 degrees when it is fired and I won't be tearing it down nearly as much as my hard use rifles.
"Perfect Practice Makes Perfect"
"There are 550 million firearms on this planet. That's one firearm for every 12 people. The question is... How do we arm the other 11?" Lord of War.
"I predict future happiness for Americans if they can prevent the government from wasting the labors of the people under the pretense of taking care of them." Thomas Jefferson
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