I just ran across a 617 on GB that has a 22 magnum cylinder. The guy has a Buy Now price of $530 can you believe that?

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Cranky Old Retired USN Guy

I just ran across a 617 on GB that has a 22 magnum cylinder. The guy has a Buy Now price of $530 can you believe that?

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Cranky Old Retired USN Guy

Here is a nice one, but look at the price. Are people really paying that much for a used rim fire that didn't even sell new for much over $400 I guess. Gunbroker link deleted buy me.

I was wanting to get a 648, but doubt I would not pay more then $400 for a nice one.

Have people just gone nuts????

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Cranky Old Retired USN Guy

....Great. I see that they are waiting for a rear sight to arrive...they should also be waiting for a 22lr cylinder to arrive too.A magnum round should be going through a magnum bored barrel.
I'll pass.

I saw that on GB. I cannot believe that someone did that.
And yes, the 648 no dash and dash 1's are selling fairly high. Saw a dash 1 go for 600.00 the other day. There just isn't that many of them for sale.
The 617's are also selling for the 450.00 to 550.00 range, and I'm talking pre lock.

i just bought a 648 the other day for 500 on gunbroker. i asked about this conversion because i want ed a no lock, no MIM 648 using the frame from a 617. i was told the 22mag is 224 calber and the 22lr is 223 caliber and it was not advised to do this. so i guess the best way is to use the 617 frame and then use the 648 barrel and cylinder?

That's how I see it ..... .223 vs. .224 slugs .....

..... I own a DW in .22 lr. and I emailed CZ who owns Dan Wesson and they said that all it took was a new cylinder to make it a magnum ....

..... I asked them about the bore difference and they said ........ "What's a thousanth of an inch?"

I thought that was pretty lame!

Three 44s

The 1000" inch difference is kind of like a myth of fingerprints as the song goes. It does exist but not 100% accurate.

Strange thing is most manufactures use same barrels for both rounds and have every since the intro of the round and that includes the 648 and the rifles of yore. What most people do not realize is that when the barrel bore tools starts to wear as the number of barrels are bored and toward the end of the use of that tool before it is discarded closes the barrel gap and decreasing accuracy. I can remember when those first few barrels were sold as premium barrels by manufactures.

The guy at DW was correct and that the 1000" should make no difference as it would only be about 1/2 a thousandth out of spec for a Magnum. But I had a friend tell me once who worked for Ruger that there was actually not different barrels used for LR and Magnums.

I have my DW at the factory having my old 22 LR cylinder bored to magnum and a new 22 LR cylinder installed. I hope to have it back by end of the month and then have some nice warm weather to do some shooting.

The best 22 magnum autoloader on the market is the FNH 5N7 and I have one and absolutely love the gun and round. I have a AR-57 to go with the pistol and love the none gas operation, nothing beats blow back for ease of cleaning and reliability. Then there is the bottle neck case that makes Failure to Feed almost unheard of and the center fire aspect for eliminating Failure to Fire makes for a beauty of a round.

Sure wish S&W would do one in a revo for sure, I could retire my FNH 5N7 from being my house gun.

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Cranky Old Retired USN Guy

I have a Contender with a .22lr barrel that was rechambered to a magnum. It is the most accurate .22 handgun I own. As for safety I doubt a 617, Single Six or whatever will be dangerous from this conversion. I also have a Single Six with over 5,000 rnds. through it that was converted to a mag by boring out the cylinder and haven't had a problem. Accuracy is better than when .22lr.

I have several older 89-93, 17s and a 648, a 22/22mag cal. Brownells range rod will go down the 648 barrel, but wont fit into any of my 17s / 617s or my 1948 k-22. The special K-22 rod will go. I know S/W 22 revolvers are supposed to have a tight bore. So there is some difference in the bore at least on the older S/W's. Bob

I thought the prices were fairly good in this thread...then saw it was from 2009.

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No good deed goes unpunished.

I thought that, too. Good catch on the date!

I used to own a Ruger Single Six convertible, a 1976 gun with the Bicentennial markings on the barrel. Since the 22WMR bore is larger than 22LR bullets, accuracy with 22LR ammo, which is probably what the majority of owners of such guns will shoot through them the most, was not good.

Ed

From the first few months of being available a fellow pistol smith has been rechambering 'K' frame SS .22 LR cylinders to 22 WRM and installing them as alternates for M 617s. His success led me to do my own conversion a few months ago. I have posted about my being taken back about how accurate the 22 Mag is thru the M 617 22 LR barrel. My water mark to measure by was my previous conversion of adding a 22 LR cylinder to my M 48. That accuracy was not good. I even purchased a set of Neal Waltz's bump dies to enlarge the diameter of the 22 LR ammo. That helped considerably, but not enough to be impressed and it is a lot of busy work to bump up a bunch of 22 LR ammo.

The tollerance issue in manufacturing 22 LR barrels was mentioned. IF a 22 LR barrel was spot on the resulting swage down of 0.0005" of the radius of the 22 Mag bullet is totally acceptable and maybe even desirable with certain bullets. Then the issue of whether or not the barrel in question was made at the first of the boring tool's run or at the last of the run and the resulting slight differences in diameters was mentioned. It all points up that every handgun barrel and cylinder combination are a single case in point and only shooting with several brands and weights of ammo will the final accuracy be determined.

My thoughts on seeing the results of the 22 Mag cylinder conversion for M 617s by my friend and myself is that the conversion is more likely to be very accurate than not. I will do it again. I used a standard cut 22 Mag SAMMI reamer by JGS Reamers. ............. Big Cholla