Machining a picatinny rail?

[EXPRESS]

I'm about to buy a small mill for small jobs and I'd like to know how hard it is to make a picatinny rail, and what instrument I need to copy the curvature of the top of the rifles' reciever.
How difficult is something like this to make?
Can anyone shed any light on the matter?

Thanks.

 

[NDNorm]

http://egw-guns.com/catalog/index.php?cPath=39&osCsid=8b383582a490bb1666781fb2ffb26bb5

copy and paste the above order a piece of stock to start with and just focus on the contours needed for your action / barrel.
I am doing the same thing to get a one piece base for my 1885 high wall in .300 WSM.
Norm
I didn't know it makes an address a click able link automatically

 

[DONTSTROKEME]

What type of rifle are you trying to fab up for? Have you tried Ken Farrel bases and rings? He might have a base for it, or maybe Near Manufacturing.

Joe Oakes