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hedrok
 Post subject: 9mm Cylinder
PostPosted: Sat May 25, 2019 6:59 pm 
Single-Sixer

Joined: Tue Jun 21, 2011 3:27 pm
Posts: 324
Location: NE Ohio
Still working on my project...just chasing it down another rabbit hole.
Can anyone tell me if older Blackhawk SA 9mm cylinders are the same as
Speed Six 9mm cylinders? What is different?
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hittman
 Post subject: Re: 9mm Cylinder
PostPosted: Sat May 25, 2019 7:49 pm 
Moderator
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Joined: Wed Jan 16, 2008 10:26 pm
Posts: 8860
Location: Illinois
I don't know but it may help you to put this in the Gunsmith section too.
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daveg.inkc
 Post subject: Re: 9mm Cylinder
PostPosted: Sat May 25, 2019 8:19 pm 
Hunter

Joined: Sat Nov 14, 2015 7:06 pm
Posts: 2547
Location: Kansas City, MO
Not the same. At least in .357. DA turns opposite of SA. I measured a NM. .357 BH and a .357 Security Six. BH dia is 1.729” vs Security dia is 1.5”. Plus the BH cylinder length is longer.
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arfmel
 Post subject: Re: 9mm Cylinder
PostPosted: Sat May 25, 2019 8:51 pm 
Buckeye

Joined: Sat Dec 01, 2007 4:35 pm
Posts: 1024
Location: Texas
The Six series cylinders are also cut for the extractor mechanism and yoke which the Blachawk doesn’t use.
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hedrok
 Post subject: Re: 9mm Cylinder
PostPosted: Sun May 26, 2019 7:46 am 
Single-Sixer

Joined: Tue Jun 21, 2011 3:27 pm
Posts: 324
Location: NE Ohio
OK...That won't work. Soooo...How about the possibility of putting
a Speed Six 9mm cylinder into a Service Six or Security Six originally built for 38/357?
Logic tells me that Speed Sixes were made in both 9mm and 38/357, and the frames
among the three guns are pretty much the same, so the 9mm cylinder should be
reasonably compatible...
Oh, I forgot...logic probably plays no part in this.
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daveg.inkc
 Post subject: Re: 9mm Cylinder
PostPosted: Sun May 26, 2019 7:49 am 
Hunter

Joined: Sat Nov 14, 2015 7:06 pm
Posts: 2547
Location: Kansas City, MO
That should work. Get Jerry Kuhnhausen’s book on these double actions. I bet your questions can be answered there.
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hedrok
 Post subject: Re: 9mm Cylinder
PostPosted: Sun May 26, 2019 7:53 am 
Single-Sixer

Joined: Tue Jun 21, 2011 3:27 pm
Posts: 324
Location: NE Ohio
hittman wrote:
I don't know but it may help you to put this in the Gunsmith section too.


I think you're right. This seems way more involved than I thought.
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s4s4u
 Post subject: Re: 9mm Cylinder
PostPosted: Sun May 26, 2019 9:16 am 
Hunter

Joined: Sat Dec 16, 2006 2:01 am
Posts: 2067
Location: MN, USA
Quote:
DA turns opposite of SA


This ^^^
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gramps
 Post subject: Re: 9mm Cylinder
PostPosted: Sun May 26, 2019 9:50 am 
Hawkeye

Joined: Thu Oct 26, 2006 1:01 am
Posts: 14921
Location: Woodbury, Tn
Just get a BH, maybe it will come with a 9mm cylinder? If not they are readily available. Good luck!
gramps

_________________
NRA Patron Member
Tn firearms association: http://www.tfaonline.org
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hedrok
 Post subject: Re: 9mm Cylinder
PostPosted: Sun May 26, 2019 3:32 pm 
Single-Sixer

Joined: Tue Jun 21, 2011 3:27 pm
Posts: 324
Location: NE Ohio
That would be too easy, Gramps.
I shoot in a "Dirty Harry...DAO" league. So, SA won't work.
I'm just trying to find a reasonable way to shoot 9mm with moon clips
...but, it seems to not be that reasonable.
Darn.
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arfmel
 Post subject: Re: 9mm Cylinder
PostPosted: Sun May 26, 2019 6:42 pm 
Buckeye

Joined: Sat Dec 01, 2007 4:35 pm
Posts: 1024
Location: Texas
Send the cylinder from your Security Six or GP-100 to be cut for 9mm and moonclips, maybe?

https://www.tkcustom.com/services/machining
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hedrok
 Post subject: Re: 9mm Cylinder
PostPosted: Sun May 26, 2019 7:11 pm 
Single-Sixer

Joined: Tue Jun 21, 2011 3:27 pm
Posts: 324
Location: NE Ohio
Arfmel...I think you just hit a bullseye.
That sounds like the way to go.
I'll be checking on it next week.
Thank You!!
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silverback
 Post subject: Re: 9mm Cylinder
PostPosted: Mon May 27, 2019 2:09 pm 
Single-Sixer

Joined: Thu Aug 09, 2012 9:01 pm
Posts: 498
Location: el paso texas
Yep I found a security six cylinder on ebay.
I was lucky in that it fit perfectly. Gap and timing perfect. I did this because If I was ever going to sell it it would still have its original cylinder.

Tk customs did the work. I have been enjoying 9mm practice out of my service six for months.

Extra bonus tha cylinder also works in my 6 inch security six.
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