Bren Barrel nut question

[Peter Laidler]

Mmmmmmmm....... We fitted zillions of barrels to Brens and two of the conditions (there were many, believe me....) were that the barrel nut was to remain the same, as was the locking shoulder. Fitting barrels was a looooong learned process at Carlisle under an ogre called Harry Weeks, otherwise known as '.....Sir, spelled CUR...'. If you have a Mk3 Bren. If you have one barrel that fits perfectly, locks up tight and is in CHS then others should also be close. The barrel nut simply tightens up the barrel by pushing the barrel shoulder rearwards against the barrel facing shoulder of the gun. You can get away with increasing the CHS by fitting barrel washers that come in 2 sizes of .002" and .003", up to a maximum of .006" and in any case, only 2 can be fitted.

As you can see, this COULD add .006" to your CHS but it could alsoover- tighten up the barrel you want to fit too. Then you have to try to find a barrel nut that will tighten BOTH barrels. Barrel fitting really is a classroom discussion, observation, discussion, practice, and on and on and on. Our school Brens were all well worn so barrel fitting was a true trial for us......

Additionally, we had Brens cut completely in half longitudinally down at the centre section so that we got to understand the theory and the actual dynamics of what was happening.

Information

Warning: This is a relatively older thread This discussion is older than 360 days. Some information contained in it may no longer be current.