.22 barrel
I have a 22 cal revolver that is 22lr I recently found a magnum cylinder that will fit, my question is does the barrel have to be magnum to fire mag rounds?
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Yes.
Neal0 -
The diameter of a 22LR bore is smaller than the magnum. The pressures will be all out of proportion, and at the very least rupture a casing.
Another thing to keep in mind, is that just because it fits or drops in, does not mean that the barrel cylinder gap is OK, nor is it timed properly.
Best0 -
I have a hard time getting my mind around that, if the bullet diameter is the same would the magnum round have that much more pressure? 0 -
I don't want to be encouraging any unsafe practices, but at the very least it might pay to slug the bore. I had a Ruger Bisley Single Six that was sold as .22 L.R. only. I found a magnum cylinder that dropped in, gap was within specs and properly timed. The only split cases I ever saw were the occasion L.R. round that I would fire in the mag. cylinder. Most just bulged, a few split. It may be that Ruger uses (or used) the same dimensioned barrels for both their l.r. only and convertible cylinders. If it's a single six, I'd give it a try. But that's just me. 0 -
anyone that firs 22lr in 22 mag cylinder has no business giving advice 0 -
If the gun was available in both calibers (and I assume it is-as you have a magnum cylinder) the bore should be of proper diameter for either. 0 -
Revolvers that are switchable between 22 LR and 22 WMRF are bored for the magnum cartridge. Not only is the magnum larger in diameter, and higher pressure, but many are harder, jacketed bullets. If your revolver is marked .22 LR, don't try it. Can you shoot mags in a 22 LR revolver? Answer is maybe. It may not fail on the first shot, or the 50th shot, but as Clint Eastwood said "Ya gotta ask yourself- Do I feel LUCKY ? Well...... do yah?"
PS If you choose to do this, please give enough notice to innocent bystanders to allow them to leave.0 -
anyone that firs 22lr in 22 mag cylinder has no business giving advice
Sometimes good advice comes from people that do foolish things and are willing to be honest about it. To those who have never anything "foolish" like that, my hats off to you.
(but at least now you know what happens)
[:D][:D][:D]0 -
It would help if we knew what type of revolver it is. For instance I have an H&R 676 that is bored to take the .22 mag, but also has a .22LR cylinder that you can swap out. It came with both. So for some pistols it is safe, yes; and in such guns usually the LR won't shoot that well as the bore is oversized for it. But it is safe.
OTOH if you have a gun that was chambered for 22 LR and the same manufacturer made a .22 mag cylinder for the same model gun, but not meant to interchange, i.e. the same gun was offered in multiple chamberings, then no it isn't safe.
So... what do you have?0 -
thankyou every one for your responses I listened and luckily I found a magnum barrel today. It was for a high standard double nine that I turned into a rifle several years ago. I am just a bored old guy and needed a new project, now I just have to find a machinist to fit the mag barrel to my frame and I will have a new toy 0 -
have rechambered a number of select single shot rifles & revolvers to 22 mag with no problems...one of my favorites has been to RC ruger bisley 22lr to 22 mag & put on up to 18" barrels...like bisely hammer & grip style...hold 0.002-3 cylinder gap...almost all of the import revolvers have to have barrel gap closed as i have found up 0.017 which gives the ears a workout...interesting results measuring 22 barrels with 0.001 incremental spuds....you wont worry about bullet dia slight diff...reworking bolt face on single shot rifles has been interesting because every 22 mag brand has a diff rim thickness so to hit average where bolt lock is smooth & just snug...been doing that manually but have a jig idea in mind..22 caliber projects are fun & affordable ...like to make a 22 cal side hammer colt root copy sometime...have fun 0 -
quote:Originally posted by petrox
I have a hard time getting my mind around that, if the bullet diameter is the same would the magnum round have that much more pressure?
That is just it...the bullet diameters are NOT the same. The 22LR bullet is 0.222 diameter and the 22WMR is 0.224 diameter. To add to that the WMR's are heavily copper plated or in some instances JACKETED.
As a further example, some older 22 Hornet rifles have a bore of 0.223 inches, and reloaders are most often than not cautioned about loading 0.224 bullets in them. While the newer models have a 0.224 bore diameter, and do not usually shoot as well with the 0.223 bullets. Same with the convertable revolvers. The WMR is usually more accurate, as the bore is made for that bullet, while the 22LR bullets do expand somewhat as they are soft lead to meet the bore, when they are fired.
If in doubt, err on the side of safety. you only have one face, and one set of eyes. A small piece of metal from an exploded casing can and will change your whole outlook and life.
Best0 -
The High Standard Double Nine used the same rifling diameters in both the revolvers both before they offered a .22 magnum revolver and after. The diameters were larger than what they used in the pistols. 0 -
quote:Originally posted by petrox
I have a 22 cal revolver that is 22lr I recently found a magnum cylinder that will fit, my question is does the barrel have to be magnum to fire mag rounds?
Ruger made a convertible six shooter that was sold with both cylinders. I don't understand why some folks are telling you it won't work. I shot several thousand 22 mag shells in that gun and also shot more than double that amount of 22 LR ammo.0
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