What Receiver and barrel ?
What Receiver and barrel are you going to use ? Winchester, Remington, Mauser, what are you going to build, heavy barrel - sporter - ? If you go back and look at the one picture with the Template on it you will see the pencil line I put down the middle of the stock, that is the very first starting point. The next is where the trigger will be on the finished stock, I use a small nail and a hole through the bottom template, actually both of them. Attached is a picture of both of the templates, centerlines and hole distances. You can see the small hole at the rear of them, that is where the trigger would be (aprox) on the stock. I use .06 material and make sure that they are square and about the same length to begin with, and drill the holes "Together", that way they are exactly the same distance apart, clamp them together to drill them. There is still a lot of wood to take off and the fitting to you will neccitate taking some wood off, this is the trial and error part of the job -
The key to it is getting the receiver bolts in the right place - and inline. You have some play with them, but not a lot, so be careful with the holes, distance apart and in line. Most of the bolts are 1/4" dia. so drill the hole a little bigger, say 17/64, that way you will be able to align the two haves together and have a little play to where the barrel will set.
If you don't have a milling machine, the first one I did I drilled a bunch of holes "inside" of the template and took a Jig Saw and cut the block out, kind of the long way, but it worked. Then it is down to Chisels and Dremils. Depending on the receiver you are going to use, there is a lot of time and effort to doing this, but rewarding. Get some Non Drying Prussian High Spot Blue, from the local parts store and use an acid brush to apply it to the metal parts, it will just wipe off later, and on you if you over do it. Also if you plan to do this regularly, I would suggest getting some gun stock maker bolts from Brownells, they are worth their weight in gold in this process. Be sure during this process to keep the trigger guard and the receiver in-line . . . ""very important"" ! If they get out of alingment or twisted, you have a nice piece of firewood.
If you are really un-sure of this process, I would suggest buying a piece of 4x4 and starting with that just to check your self confidence. I have now done about 5 or 6 of these and some were not Mausers, I made that one above on a Winchester, and they have a 1.365 Radius that the receiver sets in, that had to be stepped off in the mill, that may be over some peoples ability, but for an old tool maker - a piece of cake. Hope this hasn't confused you or made you think it is harder than it is, just some directions. Need any more help - just ask.
Phantom