WTB SS Single Six Cyl

[Hoofnit]

Just picked up a knr 6 liberty gun...only have one cyl & its wrong for the gun (has no groove for the firing pin & the serial # is wrong ) Sooo I'm poking around for a correct cyl with the pin relief, I'd prefer 22lr but pm me with what you might have.
Mark

 

[bedrockfred]

we need the O.A.L of the cylinder you have? what Cal. is your cylinder? and we can help with your search.

 

[Hoofnit]

The cylinder that came with my gun is 22lr ... I will post the O.A.L tomorrow as I'm @ work now...just figured I'd check them once somone said they had something. I have a 22wmr cylinder reamer, I could open up a lr cylinder...
Thanks, Mark

 

[Hondo44]

Mark,

Did you get a box with the gun printed with KNR6? If not, you may actually have a KS6, the 22 LR cylinder only model that would be in the serial # range of 64-22659 to 63-95466 from 1976 and it's very scarce! It should have a star on the bottom of the frame in front of the trigger guard strap.

 

[Hondo44]

Mark,

The numbers on your cylinder will be the last three digits of the gun's serial number, is that what you were checking for?

Since your gun is a New Model made in 1976, it could very well have come with the 22 cylinder without the firing pin groovce. Ruger began shipping those cylinders in 1976 on most of the Liberty Models.

Yes, you can ream the 22 LR cyl to 22 Mag. However, 22 LR cylinders are harder to find and more expensive than 22 Mag cylinders. Your gun could have come with the older fluted style Mag cyl or non-fluted style; again the change occurred in 1976.

 

[Hoofnit]

No star on the frame so its not a ks ...I do have another knr6 liberty gun that has both cylinders (both fluted), box & stuff... the one I just picked up came with a lr cylinder that is NOT numbered to the gun (it does have the last 4 of a serial # on it just not the right ones) & does not have the firing pin relief in the back ....not the correct cylinder for the gun...I'm looking for a correct cylinder (or two depending on the price) I know it will never be a collector only a shooter...just thought it might be cool to have a pair of liberty guns with mostly correct parts...
I was not aware that it could have come with an unfluted mag cyl...lots of good stuff here, I don't have it in front of me but the serial # is near the end for the year.
All that said if a unfluted mag cylinder was available that would give me mostly all I need to enjoy a shooter ... All the help is much appreciated
Thanks, Mark

 

[Hondo44]

It's not uncommon for the cylinder # not to match the gun # from the factory; it happens. It's probably the correct cylinder for the gun. Several have been reported on this forum by the original buyers including me. The question is how well does it fit?

Regardless, Ruger will make it right, send you a box to ship it back in and pay shipping both ways if you call them. They will check the fit and stamp it to match your gun too.

 

[Hoofnit]

The guy I got the gun from said it worked fine,he was not the original owner but got it from the original owner...said he had pestered him for a few years about the mag cyl but it has never turned up.
The barrel gap is .005 -.006 & it seems to time up ok I just use a bore size gauge pin to check ...O.A.L is 1.619, front boss is .126 rear is .084 & the cyl is 1.405...
These are nearly exactly the same dimensions as the cylinders for my other knr6...maybe it is the one that came with it...never thought of that.
Thanks, Mark

 

[bedrockfred]

sounds like you know what you want, i have a .22lr cylinder 1.620 OAL. with the old model firing pin ring. it can be yours for 75.00 shipped. you can return it if it does not fit your Liberty gun. numbers on it are 053. if it works, you can ream your existing cylinder to .22mag and your Liberty will be complete! Thank you Hondo44 (Jim) for extracting the info i needed to offer my cylinder for sale! __bedrockfred

 

[cellar701]

I seem to recall there were reasons the OM WMR cylinders did not have the firing pin groove, related to cartridge case failures in the un-supported (grooved areas) with the higher pressure WMR. I mention it because sometime back I was contemplating reaming an OM .22lr cylinder to WMR and was cautioned about the potential problem...

 

[bedrockfred]

i think the cyl. Hoofnit has is a .22lr with out firing pin groove that he can make the .22mag?

 

[Hoofnit]

Bedrockfred pm inbound...The original knr6 I have both cylinders are cut for the pin relief & they are both numbered to the gun (must have been made on Wed. LOL). I've fired lots of 22mag from that cyl and never had any issue, back when I got it a guy could afford to buy alot of 22mag at one time...K-mart used to run the pmc stuff for $1.99 a box, Winchester was 2.99...still have some.
Mark

 

[Hondo44]

Mark,

Bedrockfred's 22 LR cyl is perfect with only .001" to take off the front hub or it might fit as is.

Your original KNR6 Mag cyl is extremely rare with firing pin groove if the groove is factory original! Only one other is known to date; an Old Model Magnum only single six #300023.

cellar701 is correct as to why the mag cyl doesn't have the firing pin groove. However, it doesn't mean that the cyl is a problem, just that Ruger had an occurnace of blowing out the mag case head in their extensive testing. Could have been just one thin cartridge case and chances are you'd never experience it ever in a lifetime.