Get yerself a micrometer and some calipers then measure the action.
It's a fun thing to do. But respect others and design your own..
The match actions elevate their abilities in the Firing pin/bolt group and the trigger group. At least, that is the start...
The chamber is a major concern.
It will be well worth your while to measure for your own edification.
Once you have the measurements you can make a 3d model of it then you are almost there. Especially if you have a CNC or mill or lathe in your back pocket.