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April 18, 2016
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Anybody know anything about a DW chambered for a 7mm bottle necked cartridge? I'm pretty sure at least one existed. Saw it mentioned in an old Shooter's Bible as being shown at one of the major shows. Recently someone mentioned it as being given to somebody.
(It would be a study to catalog all the one offs and oddballs, like the S&W Model 19 chambered for 38 Super. I have a S&W Model 29-9, a very rare bird.)
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Dans Club
March 25, 2013
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I know a fellow who has a large frame chambered in 30 Carbine. But no 7mm. Bottleneck cartridges tend to back out and jam the cylinder. That was/is the problem with the S&W 22 Jet.
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Dans Club
December 4, 2011
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730 Waters. There was one made, a prototype. It is owned by a member on this forum. I've had the honor and pleasure to shoot it. It is currently chambered in 7mm Supermag.
Anything worth doing is worth doing well.
My father
If a man designed it, and a man built it, then a man can fix it.
My grandfather
April 18, 2016
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What is the 7mm SuperMag?
As far as bottle necked cartridges tying up revolvers, it is largely a myth. A number of revolvers have been chambered for a number of bottle necked cartridges with no issues. I shoot three myself. The 22 Jet is an exception. If you intentionally designed a cartridge to tie up a revolver, it would be the 22 Jet. It was inspired by the 22 Harvey K-Chuck which didn't tie up revolvers. It was a case of the majors taking a wildcat and fixing what wasn't broke.
The 22 Jet gas has that ridiculously long shoulder causing set back. One of the cartridges I shoot is the 357-44 Bain & Davis. No set back issues.
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Dans Club
December 4, 2011
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7mm supermag is a cartridge developed by Elgin Gates, the father of the supermag family. It is formed from 357 supermag brass, necked down to 7mm. It shares the 1.610 case length of the supermag family.
It was not developed into a production revolver by Dan Wesson.
The gun I mentioned, was a prototype chambered in 7-30 Waters. I'm not sure the reasoning why , but it's current owner had it rechambered to 7mmSM.
The frame window on this gun is larger than that of the other DW supermags.
It was a privilege to have the opportunity to shoot this rare gun.
Perhaps it's owner will see this thread and expand on what I've mentioned.
Anything worth doing is worth doing well.
My father
If a man designed it, and a man built it, then a man can fix it.
My grandfather
February 16, 2016
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Very cool and interesting story, thanks for sharing.
Dans Club
February 24, 2013
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Yes, great information there Scorpio!
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Dans Club
February 9, 2009
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Unspellable,
I will take some pics of it for you 
. The story of getting this gun to functional was a tale all of its own.
SMF
A man cannot have too many SuperMags
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Dans Club
February 9, 2009
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A man cannot have too many SuperMags
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Dans Club
February 9, 2009
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The 7MM Supermag Cartridge...
A man cannot have too many SuperMags
Dans Club
February 24, 2013
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April 18, 2016
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"A man cannot have too many SuperMags"
That's ominous. I sold a couple and am down to only three. Would a Ruger Maximum count as a half?
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Dans Club
February 9, 2009
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I apologize, got busy and never came back to post pics of the revolver. Here we are:
A man cannot have too many SuperMags
August 28, 2009
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Whoa - that's definitely a "one off" piece right there! That's a loooong cylinder! And it's got a solid rib on the shroud as well.....this rare bird has all sorts of unique features that certainly make it "one of a kind".
February 16, 2016
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That is very cool Super, love it !
Dans Club
February 24, 2013
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Dang if that isn’t the coolest Dan I’ve seen, thanks for all the pics, especially the pics with ammo in the cylinder!!
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DWF Supporters
February 16, 2013
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HOLY CRAP That's cool! 
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