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 switching cylinders on a High Standard
rgaper  [Team Member]
5/5/2009 12:20:56 AM
Anyone have instructions or tips on how to switch out the cylinder on a Double Nine .22lr/.22wmr revolver without launching parts? I was able to find a parts schematic, but no instructions.





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dfariswheel  [Member]
5/5/2009 4:50:19 PM
Assuming you want to install a cylinder that didn't come with the gun???? AND the gun itself has a .22 Magnum barrel installed so it's safe to shoot both.

Sorry, revolver cylinders do not "drop in", they're hand fitted at the factory.
Even if you can get the cylinder to close, it still won't really be "right".
Revolvers are very "old school" and unlike automatics where most parts can be installed with little or no fitting, revolver barrels and cylinder assemblies are individually fitted, which AIN'T easy.
Few people understand this and just figure, "What the hell, it'll work".
It doesn't, not really, but since they have no idea of what or how to check for proper fit, as long as it fires, they figure it's good to go.

When fitting a cylinder, the fitter has to adjust and gage the following:
Head space.
Cylinder end shake.
Barrel/cylinder gap.
Timing.
Barrel/chamber alignment on ALL chambers.

The cylinder is first fitted with a new, unaltered ejector that's over-length.
Then the cylinder assembly is fitted to the frame by using a precision surface grinder to "shorten" the ejector to establish head space.
Once that's done, the cylinder bushing is trimmed to eliminate cylinder end shake.
Then the cylinder,cylinder locking bolt, and action parts are adjusted to correct timing and chamber alignment.
Since used parts have already BEEN fitted....to a different frame, they usually don't fit properly.

Assuming you have a factory fitted cylinder but it's not fitted with a crane assembly here's an exploded view of a High Standard DA revolver. All their single action look alike revolvers used the same action, only cosmetics were different.

http://www.stevespages.com/ipb-histandard-highsierra.html

AS I RECALL (note the qualifier, so no guarantees):

Remove the cylinder assembly from the frame by pressing in the crane lock, part 40, and sliding the entire cylinder and crane assembly off the frame.

Press the ejector rod back and push out the ejector rod retention pin part 12.

Remove the ejector rod from the front, the ejector assembly will pop out the rear of the cylinder with some force.
DO NOT try to remove the cylinder bushing part 6, it's pressed in.

Again, fair warning, even if the cylinder snaps into the frame it isn't going operate properly. It may SHOOT, but not properly or even safely UNLESS it was pre-fitted at High Standard.

If this was more than you needed, sorry.


rgaper  [Team Member]
5/5/2009 5:28:40 PM

Originally Posted By dfariswheel:
Assuming you want to install a cylinder that didn't come with the gun???? AND the gun itself has a .22 Magnum barrel installed so it's safe to shoot both.Assuming you have a factory fitted cylinder but it's not fitted with a crane assembly here's an exploded view of a High Standard DA revolver. All their single action look alike revolvers used the same action, only cosmetics were different.

http://www.stevespages.com/ipb-histandard-highsierra.html


Again, fair warning, even if the cylinder snaps into the frame it isn't going operate properly. It may SHOOT, but not properly or even safely UNLESS it was pre-fitted at High Standard.



No, this is a cylinder that came with the gun. The gun was advertised/marketed/designed to be converted between both calibers. The gun (it actually is a High Sierra) is marked ".22cal" and came from the factory with a .22lr and .22wmr cylinder. I've got the exploded parts view just like the one that you provided in the link above. When my FIL went to switch it out, he "launched" some parts which luckily he found and was able to re-install. I'm assuming there is a specific technique which is what I was hunting for.

Thanks much!

JamesinNM  [Member]
5/5/2009 9:13:19 PM
I bought a new nickle plated Double Nine about 30 years ago. They were indeed fitted from the factory with both 22/22 Mag cylinders (just like the Colt New Frontier in my safe), and mine had smooth walnut grips. Cool gun, but the trigger was a little heavy (mine was anyway). However, the gun was traded off long ago. I can't remember how to change out cylinders, but flying parts was optional, not standard. I've been sitting here trying to recall how to do it, but no luck. If it comes to me, I'll repost. It did bring back some fond shooting memories though.
rgaper  [Team Member]
5/5/2009 10:07:24 PM

Originally Posted By JamesinNM:
I bought a new nickle plated Double Nine about 30 years ago. They were indeed fitted from the factory with both 22/22 Mag cylinders (just like the Colt New Frontier in my safe), and mine had smooth walnut grips. Cool gun, but the trigger was a little heavy (mine was anyway). However, the gun was traded off long ago. I can't remember how to change out cylinders, but flying parts was optional, not standard. I've been sitting here trying to recall how to do it, but no luck. If it comes to me, I'll repost. It did bring back some fond shooting memories though.

This one would definitely bring back fond "heavy trigger" memories for you. I'm betting that it's probably in the 20lb range.


dfariswheel  [Member]
5/6/2009 2:37:49 PM
I'm very surprised High Standard didn't supply these with an entire cylinder and crane assembly.

This is how most factory double cylinder conversions work for double action revolvers.
Since installing a crane assembly on a cylinder is a gunsmith job, installing a cylinder ASSEMBLY with crane is a simple matter of pressing the button on the front of the frame and sliding one assembly out and another in.

Few customers have the skills to do a cylinder disassembly, so I'm not sure what HS had in mind.
It's certainly not a quick change like a single action two cylinder gun is.

rgaper  [Team Member]
5/6/2009 5:27:19 PM

Originally Posted By dfariswheel:
I'm very surprised High Standard didn't supply these with an entire cylinder and crane assembly.

This is how most factory double cylinder conversions work for double action revolvers.
Since installing a crane assembly on a cylinder is a gunsmith job, installing a cylinder ASSEMBLY with crane is a simple matter of pressing the button on the front of the frame and sliding one assembly out and another in.

Few customers have the skills to do a cylinder disassembly, so I'm not sure what HS had in mind.
It's certainly not a quick change like a single action two cylinder gun is.




Sorry, I was not that familiar with the terminology - I'm not a revolver guy in the least. Here's a pic of another High Sierra with the spare cylinder assembly. The cylinder ASSEMBLY does include the crane assembly if I'm reading the diagram right.







JamesinNM  [Member]
5/6/2009 7:25:44 PM
Originally Posted By rgaper:

This one would definitely bring back fond "heavy trigger" memories for you. I'm betting that it's probably in the 20lb range.



Yea, the heavy trigger was the only thing I didn't like about my Dbl 9. That DA pull was tough. The SA pull, though quite a bit lighter, was still quite heavy for a SA revolver trigger pull.

LtBlue425  [Team Member]
5/17/2009 11:30:35 AM
Doesn't that model use a spring loaded plunger for the crane pivot? My dad has a similar HS and, IIRC you press the plunger in with a pin/rod, hold the plunger down, slide the assembly out of the frame. Reverse for putting the new one in. You model may not be exactly like that.

Might want to check around the HS forum. High Standard Forum
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