Bren L4 / .308 build

[42rocker]

When my Wife asks, I'm blaming cal50. OK, it was on sale etc etc

I bought a ZB30J parts kit.... I'm happy to say the receiver looks better (in the pics, we shall see). The barrel is cut up too much for repair. But it should look good on the ZB30 tripod that I have. I believe that you have one also cal50.

cal50 you have done outstanding work in bring this one back!

Again, I'm telling the Wife, cal50 did it so I'm going to try.

Later 42rocker

[cal50]

When my Wife asks, I'm blaming cal50. OK, it was on sale etc etc

I bought a ZB30J parts kit.... I'm happy to say the receiver looks better (in the pics, we shall see). The barrel is cut up too much for repair. But it should look good on the ZB30 tripod that I have. I believe that you have one also cal50.

cal50 you have done outstanding work in bring this one back!

Again, I'm telling the Wife, cal50 did it so I'm going to try.

Later 42rocker

I did pick up the 3rd leg for my tripod~

[42rocker]

I love using one of those as the 3rd leg. Looks so good to me.
But, happy to say I have the 2-piece pole also.

Talk tripods later.

Enjoy the build. Builds

Later 42rocker

[42rocker]

After a little reviewing and double checking. We both have ZB30 tripods, like I thought we did. Your old tripod thread.

https://www.milsurps.com/showthread.php?t=75006

Later 42rocker

[cal50]

Fathers day , a day for working on gun stuff !

Put my bolt together with the internal transfer bar.
This L4 / 7.62 bolt thru me a little curve from the dimensions i used on my MKI & MKII bolts. Machined the thru hole from both sides with a carbide ball endmill. One side cut very nice , no issues or surprises. Flipped it over and went to put the hole thru the other side ( They have to line up for the roll pin ) and it was more exciting than I expected. New carbide end mill and it ate it in short order. Typically when you get thru the surface hardness the base material is not as hard. Well the other half of my bolt is REALLY hard all they way thru. Ended up going thru 4 or 5 other carbide end mills getting thru it.






After dropping the transfer bar in along with the firing pin and spring the firing pin was sticking out of the bolt face slightly and I was short on travel , my transfer bar was contacting the internal bolt clearance. My 7.62 bolt is slightly thicker in the front section by about .028".

I used a 5/16" carbide end mill and cut some clearance from the front of the pocket and faced off the rear of the firing pin so its flush with the bolt face.
Roll pin installed and its ready to go.

Rounded up my stainless steel tubing to make spring guides and striker tube along with some O-1 drill rod for the spring guide. Put lower frame together.
Need to cut down the piston post to remove the FA face, add clearance for the transfer bar and weld in an extension on the piston post for the disconnector.