54R Bren Issues

[Joe H]

Guys,

Unfortunately we are continually chasing our tails on this thread. We can't analyze a semi Bren in the same way as an original FA. Every part of the original was made to spec. The semi is essentially a one-off one of a kind build, even the "professionally" built guns. They do not have totally interchangeable parts.

Even the semi operation can be different. The version that HA builds and Vincent has discussed, has a separate striker spring that cocks on the rearward motion of the bolt and carrier. The version I built has the striker spring on the recoil spring guide and consequently cocks on the return motion of the bolt & carrier. Some were built as hammer fired guns.

I've spent countless hours making adjustments to get mine to run properly. I'm sure the "professional builders" have become much more efficient.

Most of us, as I have said before, could solve the problem if we had the gun in hand for a few days.

If Djandj had just stoned a little off his LS we wouldn't be having this discussion but it precisely points out what I noted above.

Below you can find what I have regarding Locking Shoulders. The one item is from "The Bren Handbook" and I think all it gives is the thread spec and length range "H" & "L" of the shoulder. The other info is the dimensions of a LS I made and is now in use. I ground off too much and had to make a new one. Only the length is different, all the other dimensions were from the original that came with the gun.

Joe

Attachment 63207Attachment 63208