Bench Master Action

[mpickle]

I have an old Bench Master Action that I want to install a barrel on. For the life of me, I cannot figure out how the breach should be machined. If anyone has a drawing of the breach with specifications that I could beg, borrow or purchase I would really appreciate it or maybe someone could point me in the right direction where I could find the information. The action is a round tube 1.375" OD and has three (3) action screws. Spacing between the front and rear screws is 7.600". Any help would be appreciated. Thanks in Advance.
Macon Pickle

 

[Dusty Stevens]

Can you not measure the action and machine the barrel accordingly?

 

[mpickle]

I have barreled a lot of receivers, but have never encountered a bolt face like this one. The front of both the locking lugs and the bolt
face are angled. I don't know if it is just old age or a brain fart, but this has me stumped. Thanks, Macon Pickle

 

[dkhunt14]

Sounds like a coned bolt. A lot of custom actions have this to make cases feed better. Matt

 

[Ggmac]

If you could post pics I'm sure someone could help .

 

[Ggmac]

Is the bolt face angled right to the firing pin or just to the case head surface ?
I agree it sounds like a coned bolt , look at a Springfield 1903 bolt , easiest I can think of to look at .

 

[mpickle]

Here is a picture of the bolt face. What has me stumped is the 'double' cone. That is the angled bolt face and the angled locking lugs. Having never posted a picture, not sure if this will work.
Thanks
Macon Pickle

 

[Alex Wheeler]

I would just cut a cone on the breech to match the nose of the bolt. I would not worry about the lugs.

 

[butchlambert]

I have 35-40 Benchmaster bolt noses. Pm an address and I'll send you one to play with. I have both 223 size and 308 size.
Some have a regular cone and some are like yours with a little cone.

 

[mpickle]

Thanks for all the help. I have the barrel done. Sometimes I just need a kick in the right direction. Regards and Thanks again,
Macon Pickle

 

[butchlambert]

Hard to measure, but about 140deg. included.