Cloning Seyfried's "Buffalo" Seville

[Lee Martin]

I have to admit, the photo lends itself well to humor.

-Lee
www.singleactions.com
"Building carpal tunnel one round at a time"

[Lee Martin]

Yep, that's another frame. We disassembled my "basket case" Seville and did a test cut on the frame window:



I wanted to see how the end-mill would respond. Turns out the frames are exceptionally hard so we had to make shallow cuts (0.005 - 0.006").

BTW, that gun will remain as a parts bucket. I plan to shoot this clone hard so it's nice to have back-up pieces.

-Lee
www.singleactions.com
"Building carpal tunnel one round at a time"

[Lee Martin]

I should add that by opening the window to 1.84" I'll be able to fit a 1.82" cylinder. Ya, it's 0.02" over Ross' but I'll take all the steel I can get. I don't think 0.02" defeats the clone goal, right?

-Lee
www.singleactions.com
"Building carpal tunnel one round at a time"

[whitworth]

I am just pleased that you were able to use your file afterall...... ;D ;D

[Lee Martin]

If John Linebaugh really used a file to open those frame windows he has a lot of patience. I'm glad my dad talked me into using a Bridgeport.

-Lee
www.singleactions.com
"Building carpal tunnel one round at a time"

[Markbo]

Aug 30, 2012 10:05:23 GMT -5 Lee Martin said:

... I plan to shoot this clone hard so it's nice to have back-up pieces.....";

It sure must be!

[dougader]

Aug 30, 2012 10:32:00 GMT -5 whitworth said:

I am just pleased that you were able to use your file afterall...... ;D ;D

That there is funny!

[whitworth]

Aug 30, 2012 10:59:06 GMT -5 Lee Martin said:

I'm glad my dad talked me into using a Bridgeport.

-Lee
www.singleactions.com
"Building carpal tunnel one round at a time"

and you would still be filing........ ;D

[shorty500]

am so liking this thread. Like Lee i handle my own customization. Seyfried's article on the Linebaugh .45 and cape buffalo was my first glimpse at power beyond the .44 in a revolver. Never went down the custom .45 path but chose the .454 from Freedom Arms with auxillary Colt cylinders. My two favorites wear the Colt cylinders full time and loads cover mild to wild

[Lee Martin]

We recently made more progress on the gun:

Frame window after being opened:



Turning and cutting the 2.0” round bar stock (4140):





Here’s a home-made gauge we used to assess proper ratchet height:



-Lee
www.singleactions.com
"Building carpal tunnel one round at a time"

[Lee Martin]

So here’s the starting point for the cylinder:


Center drilling the blank:



Facing the blank:



We then turned it to 1.80”:



I was going to push it to 1.82” but it didn’t give the clearance we like in the window. Next up was cutting the ratchet boss:





-Lee
www.singleactions.com
"Building carpal tunnel one round at a time"

[Lee Martin]

The blank was then set-up in and indexing head on our Bridgeport mill:



The bolt stops were cut using a key cutter:





An end-mill cut the bolt leads:



Finished bolt stops:



-Lee
www.singleactions.com
"Building carpal tunnel one round at a time"

[Doc Barranti]

Very cool, Lee!

[mike454]

Aug 30, 2012 10:59:06 GMT -5 Lee Martin said:

If John Linebaugh really used a file to open those frame windows he has a lot of patience. I'm glad my dad talked me into using a Bridgeport.

I have an early Linebaugh Colt SAA with an oversized 6 shoot cylinder that looks like it was most certainly filed. I'd have imagined that the case hardening would have been a bear to get through.

[lah]

Since no one is going to ask............I will. What are the push rods & valve springs from?