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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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www.bradshawgunandrifle.com

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Subject	Posted by	Posted on
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	CptCurl	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
Re: Falling block action build along	CptCurl	18/09/19 07:55 PM
Re: Falling block action build along	vykkagur	16/04/20 09:50 PM
Re: Falling block action build along	Ash	12/08/19 12:41 PM
Re: Falling block action build along	DoubleD	13/08/19 12:27 AM
Re: Falling block action build along	Ash	13/08/19 08:43 AM
Re: Falling block action build along	DarylS	13/08/19 12:54 AM

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