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Author Topic: 22 cal. conversion  (Read 167 times)

Offline don3

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22 cal. conversion
« on: November 25, 2018, 09:23:31 AM »
Has any one used the Kirst colt 22 cal. conversion? It is suposed to work on Uberti, colt and pietta 36 and 44 cal. revolvers Thinking of getting one and looking for feed back.

Thanks,
Don

Offline Captainkirk

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Re: 22 cal. conversion
« Reply #1 on: November 25, 2018, 06:50:39 PM »
Check with Richard (ssb73q). He has done a ton of conversions, and very well.
"You gonna pull those pistols, or whistle Dixie?"

Offline ssb73q

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Re: 22 cal. conversion
« Reply #2 on: November 26, 2018, 04:14:45 AM »
Hi Don, I have five Kirst .22 conversion cylinders. They are excellent .22 conversion cylinders that work very well. The Kirst for the Colt's is especially slick in that the cylinder can be loaded and unloaded while on the revolver. Kirst supplies the cylinders with a short barrel insert, but I make full length barrels for my .22 converted revolvers. This is a photo of three brass framed revolvers with the Kirst .22 conversion:



This is a photo of one of my full length barrels:



The brass barrel end nuts and bushing for my full length barrels have evolved over time. The photos represent earlier designs.

Walt Kirst told me that patents prevent him from supplying full length barrels. The short barrel insert actually works better than expected, you can regularly pop cans all day, but don't expect to do competition with the short barrel setup.

There is one additional modification I do to the Kirst .22 conversion cylinders, I ream the chambers to 0.223". Some brands of .22 ammo are too long and won't fully chamber in the Kirst. Reaming to 0.223" solves that issue. If a 0.223" cylinder chamber is good enough for Smith and Wesson, it's good enough for me. I find that accuracy after reaming improves, a good thing.

Hope this gives you some insight on the Kirst .22 conversion cylinders.

Regards,
Richard
There’s nothing better in the morning than the smell of bacon and black powder smoke!

Offline don3

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Re: 22 cal. conversion
« Reply #3 on: November 26, 2018, 04:50:33 AM »
ssb73q, Thank You, very helpfull, will get one for sure, there on sale now. I was planing on making a avenging angle with mine, got a extra barrel to cut down.

Thanks,

Don

Offline valforgettaboutit

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Re: 22 cal. conversion
« Reply #4 on: November 26, 2018, 10:14:39 AM »
Very cool, I was not aware of these. SSB how did you go about making those full length barrels?

Offline ssb73q

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Re: 22 cal. conversion
« Reply #5 on: November 27, 2018, 04:32:00 AM »
Hi val, I make .22 full length barrels for both my .36 and .44 revolvers. These are typical full length barrels:





The front brass bushing of the .44 caliber barrel is bored off-axis so that it can be rotated to have poi=poa for windage.

This is the 3/8" barrel liner:
https://www.gunpartscorp.com/search#query=527760
The barrel liner for the .36 caliber is filed down to slip fit in the bore.

This is the front nut I use:
https://www.mcmaster.com/90759a350

This is the rear nun I use:
https://www.mcmaster.com/90521a229

This is the 7/16" brass tube:
https://www.mcmaster.com/8950k612

Free machining brass is used for the bushings.

A mini lathe is used to do the machining.

At one time I put up for sale an extra full length barrel, but thought better of it after considering liability. I only make these barrels for myself.

Hopes this info helps you.

Regards,
Richard
There’s nothing better in the morning than the smell of bacon and black powder smoke!

Offline valforgettaboutit

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Re: 22 cal. conversion
« Reply #6 on: November 29, 2018, 09:58:13 AM »
Thanks Richard! That's some great information along with some great photos. Much appreciated!

Offline Captainkirk

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Re: 22 cal. conversion
« Reply #7 on: November 29, 2018, 10:31:41 AM »
Better safe than sorry, Richard. The POA offset is ingenious. Is that your idea? (l"
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Offline ssb73q

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Re: 22 cal. conversion
« Reply #8 on: November 29, 2018, 03:37:23 PM »
The POA offset is ingenious. Is that your idea?

Hi Kirk, yes it is. I told Walt Kirst that he was free to use it and that I had no financial interest.

Regards,
Richard
There’s nothing better in the morning than the smell of bacon and black powder smoke!

Offline Captainkirk

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Re: 22 cal. conversion
« Reply #9 on: November 29, 2018, 07:48:53 PM »
The POA offset is ingenious. Is that your idea?

Hi Kirk, yes it is. I told Walt Kirst that he was free to use it and that I had no financial interest.

Regards,
Richard

You should file for a patent. Seriously.
"You gonna pull those pistols, or whistle Dixie?"