Gent's,

I have two reamers that were cut by Pacific T&D
1, 35-40,- 2, 38-55 to chamber  2 CPA / Stevens  44 1/2 barrels.

Step 1,
I am thinking of having someone with a lathe or other mould making equipment use the reamers to make a exact replica 
of my chambers (min tolerance) in a mould block so I can
separate the halves providing the ability to insert a piece of brass in one half to inspect how both the fired and unfired brass compares to the chamber.

In addition I want to use the reamers to make full length sizing dies from blanks.

I know I can get most of the information in step 1 from a chamber cast but seeing the amount of brass shrinkage is something I want to visualize..

Any thoughts..?
Dumb idea..?
Been done ..?
Waste of money..?

Thanks in advance for your opinions no matter how critical. 

Bob in Saint Augustine...

{In my next life I want to be a machinist}

beltfed wrote on Feb 16^th, 2022 at 2:02pm:


That.

Maybe quick and easy.  If you have left over Barrel Stubs you could chamber them and then cut away one side.  Doesn't have to be Dead to the Nuts Center but anywhere shy of center would give you the Visual Gage you want.  More Coffee ☕. David