03-08-2020, 09:01 PM
Mark, educate me. I have always been under the impression that the barrel extension has the hole drilled after it's installed and torqued to 150ft-lbs, or whatever the spec is. Then, the index pin hole, and the gas port are drilled on a fixture ensuring they remain exactly in-line. That way the indexing happens easily and without timing issues. Am I wrong here?
I can see how the thermal and chemical properties of nitriding a barrel with an already installed extension could cause expansion/contraction loosening. But those lessons have been learned since nirtiding has become more mainstream, right?
I'm confused how a RR could cause the extension to come loose if the torque required to remove a muzzle device is less than 100 ft-lbs (which is friggin hard to do on a RR; like Grizzly Adams hard), especially considering super max MD torque should be 60 ft/lbs...
Now, rock-set is a different animal; and anyone using it should already know that it is intended to be a permanent fixture. It's like using the two part putty... Don't expect to get away with getting it apart. It can be done, but using it makes you the permanent owner of the two parts and their marriage. Don't go complaining when it doesn't come apart without damaging one or both of the two parts... Question then, why don't we rock-set the extensions onto the barrels?
If you've moved away from the RR, what have you found to be a better solution? I've been eying some bench top barrel vises.
I can see how the thermal and chemical properties of nitriding a barrel with an already installed extension could cause expansion/contraction loosening. But those lessons have been learned since nirtiding has become more mainstream, right?
I'm confused how a RR could cause the extension to come loose if the torque required to remove a muzzle device is less than 100 ft-lbs (which is friggin hard to do on a RR; like Grizzly Adams hard), especially considering super max MD torque should be 60 ft/lbs...
Now, rock-set is a different animal; and anyone using it should already know that it is intended to be a permanent fixture. It's like using the two part putty... Don't expect to get away with getting it apart. It can be done, but using it makes you the permanent owner of the two parts and their marriage. Don't go complaining when it doesn't come apart without damaging one or both of the two parts... Question then, why don't we rock-set the extensions onto the barrels?
If you've moved away from the RR, what have you found to be a better solution? I've been eying some bench top barrel vises.
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