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Double Rifles, Single Shots & Combinations >> Single Shots & Combination Guns

baileybradshaw
.333 member


Reged: 21/06/08
Posts: 305
Loc: Diana, TX
Falling block action build along
      12/08/19 03:58 AM

Building the first run of sidelever falling block actions, I've documented the process so far.

The first step obviously is to extract the action from the plate of 8620 steel in which it is contained. I am fortunate to have a wire EDM in house. While it is capable of far greater accuracy than is required for simply profiling the action, precision is never wasted.





Once the batch of action bodies are all profiled, holes are drilled to located the starting point for the wire path to cut the breech block cavity, and a fixture is made to hole the actions during the cut.



Breech blocks were wire cut before I started on the actions. The fit is extremely precise with .001" clearance for movement. Wire EDM is a very slow process and it's done under a powerful flush of water to cool the wire and clear eroded metal from the cut. 



The tang surfaces are machined with tapers in both horizontal and vertical axis. There are also flats left on the interior edges of the tangs to index onto the inletting of the stock to negate any movement of the action once it's seated. Actions are secured to the stock with a drawbolt.

From there the pockets for the trigger group, cocking lever and extractor are machined. Also the hole in the side of the action for the sidelever stem.



Actions are flipped over and the cartridge trough is machined in. A mock assembly of the sidelever, breech block and trigger group housing ( also made before the action bodies were started) is hard to resist.

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* Falling block action build along baileybradshaw 12/08/19 03:58 AM
. * * Re: Falling block action build along baileybradshaw   12/08/19 04:02 AM
. * * Re: Falling block action build along baileybradshaw   12/08/19 04:05 AM
. * * Re: Falling block action build along baileybradshaw   12/08/19 04:07 AM
. * * Re: Falling block action build along tinker   12/08/19 05:02 AM
. * * Re: Falling block action build along TH44   12/08/19 08:44 AM
. * * Re: Falling block action build along 93x64mm   13/08/19 06:25 AM
. * * Re: Falling block action build along TH44   13/08/19 08:46 AM
. * * Re: Falling block action build along Taylor416   13/08/19 05:27 PM
. * * Re: Falling block action build along Louis   15/08/19 02:58 AM
. * * Re: Falling block action build along lancaster   15/08/19 01:59 PM
. * * Re: Falling block action build along baileybradshaw   15/08/19 11:59 PM
. * * Re: Falling block action build along baileybradshaw   16/08/19 09:47 AM
. * * Re: Falling block action build along tinker   16/08/19 11:26 AM
. * * Re: Falling block action build along baileybradshaw   18/08/19 09:20 AM
. * * Re: Falling block action build along Homer   19/08/19 06:37 PM
. * * Re: Falling block action build along baileybradshaw   21/08/19 11:43 AM
. * * Re: Falling block action build along Homer   21/08/19 06:23 PM
. * * Re: Falling block action build along DarylS   21/08/19 11:40 PM
. * * Re: Falling block action build along 93x64mm   22/08/19 06:14 AM
. * * Re: Falling block action build along baileybradshaw   23/08/19 02:11 PM
. * * Re: Falling block action build along Tom_H   28/04/20 11:56 AM
. * * Re: Falling block action build along baileybradshaw   28/08/19 01:46 PM
. * * Re: Falling block action build along baileybradshaw   30/08/19 12:30 PM
. * * Re: Falling block action build along baileybradshaw   30/08/19 12:33 PM
. * * Re: Falling block action build along Ash   30/08/19 03:13 PM
. * * Re: Falling block action build along baileybradshaw   30/08/19 11:33 PM
. * * Re: Falling block action build along baileybradshaw   31/08/19 12:52 PM
. * * Re: Falling block action build along Ash   31/08/19 06:21 PM
. * * Re: Falling block action build along baileybradshaw   05/09/19 01:26 PM
. * * Re: Falling block action build along tinker   05/09/19 02:06 PM
. * * Re: Falling block action build along DarylS   06/09/19 02:43 AM
. * * Re: Falling block action build along baileybradshaw   17/09/19 11:42 PM
. * * Re: Falling block action build along CptCurlAdministrator   18/09/19 08:18 AM
. * * Re: Falling block action build along DarylS   18/09/19 09:57 AM
. * * Re: Falling block action build along baileybradshaw   18/09/19 11:34 AM
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