Help with barrel holding fixture

[lawrence97]

I have a southbend heavy 10 with a d1-4 quick change attachment. I am currently using thick copper wire wrapped around the barrel for chambering and would like something with a ball bearing/v block.

I have attached pictures of what I would like to have but I do not have a mill or knowledge on how to make this fixture.
Would any of you be able to make this for me?
Please PM to discuss further.

 

[lawrence97]

 

[LC Tikka]

Vee blocks are primarily for cylindrical materials (and others)
A barrel with a straight or curved taper would be better held with a set of - 3 or 4 contact point bridge blocks, they would suit any barrel contour or size.
Plus you can make this bridge without special machinery.
LC

 

[Danny1788]

The bottom 3 pictures are mine. I did that a few years ago. It works really well.

PM me

 

[DaveTooley]

You could do everything except drill and tap the holes. Which BTW are more important than any other part of this fixture. If they are not perpendicular to the bore and in the same circular plane they will make contact in different axial positions at different diameters. Get a cheap chuck backing plate off of EBay and turn it down. There is usually enough meat on the front for the screw holes.

 

[tobnpr]

Get this and bolt it to a chuck backplate (I used one from a 3-jaw that never saw any use).
Easy peasy.

https://www.grizzly.com/products/Bald-Eagle-Aluminum-Spider-Plate-5-Diameter/BE1125