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I have a High Standard Double 9 .22 pistol.

I was reading someplace that this pistol was also available with a .22 magnum cylinder, is that true? If it is, where would I be able to pick up the .22 magnum cylinder?
 

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The Double Nine (a Sentinel in western dress) was never offered with dual cylinders, in fact, I have no memory of High Standard ever offering the .22 mag chambering in the Dbl 9 or Sentinel. I don't believe the higher pressures were compatible with the aluminum frames. My brother still has my sentinel. I will research further and report back if I find anything different.
 

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Even if you found a cylinder and made it work (timed etc), you wouldn't want to use it. Convertible pistols w/.22 Mag cylinders are bored for the larger diameter .22 mag bullet. If it didn't blow up from increased pressures, you would have dramatically increased bore wear.
 

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On the High Standard Double 9 if under the writtien of Double-Nine say Convertible you would have a Mag cylinder. I know that is because My Dad had got one at the time brand new and it came with the Mag cylinder. My brother has it now and I am looking at it now. Just to clear some that was ask.
 

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If the Double Nine is any thing like my Sentinel Deluxe it appears to be somewhat of a project to change cylinders. The crane pin is deeply set into the frame and the cylinder doesn't slide off the crane since rearward movement is stopped by the frame. I've had several Hi Standard double action revolvers and none of mine had the the Mag cylinder.
 

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my son-in-law has a High Double NIne with a STEEL frame and 2 cylinders one for .22LR and one for .22Mag. They do exist but I have only seen this one example. there were other options too, ie a Durango with a octagon bbl maybe 7" or so long with walnut grips instead of white plastic. some of the early ones even had fluted cylinders. I have one in .22LR & the white plastic grips & smooth cylinder but found some walnut grips years ago at a gun store in Waterloo, IA when on vacation there in the 60's.
 

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my son-in-law has a High Double NIne with a STEEL frame and 2 cylinders one for .22LR and one for .22Mag. They do exist but I have only seen this one example. there were other options too, ie a Durango with a octagon bbl maybe 7" or so long with walnut grips instead of white plastic. some of the early ones even had fluted cylinders. I have one in .22LR & the white plastic grips & smooth cylinder but found some walnut grips years ago at a gun store in Waterloo, IA when on vacation there in the 60's.
Just to continue with this thread from quote above of my own post........I now OWN a High Standard Double Nine CONVERTIBLE .22LR/.22Mag. I am really pleased to have found such a nice clean, specimen of the convertible Double Nine. Just found it this wknd at a gun show in WI. It is only the 2nd one I have ever seen and in really nice shape with good bluing yet ie: very, very Little sign of holster wear and very little cylinder wear and it has OK wood grips But they are a bit wider/larger then my older Double Nine grips. The action is very tite and I doubt it was ever fired much and the cylinders show a very light "turn ring".

Also my 1963 version has a hammer mounted firing "pin" while the "newer" convertible has the safety transfer bar frame mounted firing pin. It also has a STEEL frame and both cylinders. It's very easy to change the cylinders: there is a push pin/spring where the crane is attached to the frame, push the tapered pin DOWN with a rod and while holding spring tensioned pin down slide the crane ring out of the frame, you will actually be allowing the rod you are using to push the pin down to come up ie let the crane ring slide under it as you pull the crane ring out. Whola.....cylinder is out and you can then put in the Magnum cylinder in the reverse order. There is the difference of the diameter of the .22LR and the .22Mag but I don't know just what it is. However, the Ruger Single-Six has been dealing with it for years with no major issues. It may be a problem IF you were to try to bore out a .22LR cylinder and shoot the magnums in that gun BUT if it were a alloy/aluminum frame it may not be so good an idea to try that.
 

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Irish Bird Dog
hv same handgun , purchased in 1975 + - :confused:. still in perfect cond. fired about 25 mag. rounds , still in holster . was just surfing when found this forum , brings back old memories. Thanks :) what was Ur. cost if U don't mind my asking ,:confused: and no mine is not for sale :):)
 

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Irish Bird Dog
hv same handgun , purchased in 1975 + - :confused:. still in perfect cond. fired about 25 mag. rounds , still in holster . was just surfing when found this forum , brings back old memories. Thanks :) what was Ur. cost if U don't mind my asking ,:confused: and no mine is not for sale :):)
paid $325 last spring
 

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Double Nine convertable

July 7, 2011, Louisiana
I took my double nine convertible with me as my snake gun this evening as I took a buddy to check my deer stand. He took a Taurus 1911 .45. We shot each others guns and he said he never saw a nickle double nine. Especially in such good shape as mine is. I said I like the .45. He said I'll trade you guns. I said well... I wouldn't want to cheat you. (he's my preacher) He said he thinks I would be the one to get cheated!

What do you guys think?

Also, is the frame on mine aluminum as I have heard?
 

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A magnet will discern if your frame is aluminum.

I see nothing wrong with the trade since you both think you are getting the better deal.
 

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July 7, 2011, Louisiana
I took my double nine convertible with me as my snake gun this evening as I took a buddy to check my deer stand. He took a Taurus 1911 .45. We shot each others guns and he said he never saw a nickle double nine. Especially in such good shape as mine is. I said I like the .45. He said I'll trade you guns. I said well... I wouldn't want to cheat you. (he's my preacher) He said he thinks I would be the one to get cheated!

What do you guys think?

Also, is the frame on mine aluminum as I have heard?
The frames on the convertible double nines are STEEL.....but the magnet will tell you for sure if any doubts.

A trade is perfect if BOTH parties are happy when it is dun!
 

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Frame

I checked my nickle convertible and the frame is steel but the grip seems to be aluminum as the magnet doesn't stick.

Thanks.
 

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I am new to this Forum, and I have read sveral referances stating that a 22LR/ MAG coversion will not be accurate due to the differance in the cilander bore size. I am a machinest and I measured the projectile (Bullet) for both the 22LR and the 22Mag. both bullets have the same maximum outside diamaters. so, once the bullet enters the barral, they both have the same contact surface for the rifeling in the barrel. The bore size of the cilander is only to properly hold the casing securly in place. This being said, one shold neve try the fire a 22LR in a 22Mag cilander.
 

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I am new to this Forum, and I have read sveral referances stating that a 22LR/ MAG coversion will not be accurate due to the differance in the cilander bore size. I am a machinest and I measured the projectile (Bullet) for both the 22LR and the 22Mag. both bullets have the same maximum outside diamaters. so, once the bullet enters the barral, they both have the same contact surface for the rifeling in the barrel. The bore size of the cilander is only to properly hold the casing securly in place. This being said, one shold neve try the fire a 22LR in a 22Mag cilander.
Well, I have always heard that the .22LRA & .22Mag have had DIFFERENT bullet diameters....that said I have found this statement from wikipedia...for what it's worth....".223 inches for the .22LR, .224 inches for the .22 WMR.

Read more: http://wiki.answers.com/Q/What_is_the_diameter_of_a_22Lr_bullet_and_what_is_magnum_22_diam
eter#ixzz1jw3psdvY

and this for the .22Mag
. Specifications Parent case .22 WRF
Bullet diameter .224 in (5.7 mm) Neck diameter .242 in (6.1 mm) Base diameter .242 in (6.1 mm) Rim diameter .294 in (7.5 mm) Rim thickness .050 in (1.3 mm) Case length 1.055 in (26.8 mm) Overall length 1.350 in (34.3 mm) Cartridges of the World [1]
 
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