|
Page 2
|
 |
|
This is as far as I can go on the receiver for now.
|
 |
|
Next I start the Barrel Block, again I start with a 1.5" x .75" piece and apply some Dykem.
|
 |
|
Then its back to the surface place and I layout the lines for the Lug and the position of the Barrel and Extractor holes.
|
 |
|
I don't have the capacity to drill this on the Mini-Mill so I offset the piece in the Lathe using a 4-jaw chuck. Here I am lining up the Barrel hole using the pointer in the tailstock.
|
 |
|
I then drill the hole to 31/64" using several different sized drill bits.
|
 |
|
Finally I use a .500" reamer to finish the hole to the size.
|
 |
| Next I use the same procedure and drill and ream the extractor hole to 1/8". The only difference on this hole was it had to be drilled from both sides because of the short drill bits. |
 |
|
Then I chamfered both ends of each hole a slightly to remove any burrs.
|
 |
|
Here are the finished Barrel and Extractor holes in the Barrel Block.
|
 |
|
Next its was back over to the Mill to Cut out the Barrel Lug.
|
 |
|
I then used so emery cloth to clean up the rough edges.
|
 |
|
A quick test fit to make sure the Barrel Block fits flush up against the Receiver.
|
 |
|
After applying some more dye to the lug I use a transfer punch to mark the location of the pivot and locking pin holes.
|
 |
|
Then making sure they are lined up perfect with the pointer I drilled and reamed the holes .
|
 |
|
Then with a file I shave the corners slightly to allow the Barrel Block to rotate upward for loading.
|