22wmr

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bogie

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I am looking at a rifle that takes 22WMR. I am not able to find a listing for this
bullet by the usual manufs. I can find 22WM and 22WMF but the only listing I can find for this cal is in the CCI listing. Is this a dead or dying cartridge or are they all the same?
 
lone-wolf said:
22WMF is not the same as 22WMR. 22WMF is basically dead.

.22wmr or .22mag is alive and well. look harder.
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You are thinking of WRF as the original 1890 was released in,but so many owners of the 1890,and 92,and arcade guns swamped Winchester with orders for the WRF cartridge they decided it would cost them less to produce it twice a year than answer all the requests for it!

They do the same for the .375Win !

Bob:)
 
Well guys thanks for the edgamacation. None of the cats that I was looking in actually listed it that way. Of course I see 22mag all over the place. Then why would the guy say it that way when you need to know this to understand what it actually is? All part of the learning curve then. Thanks again.
 
yes. .22mag is the same as .22wmr
.22 WRF is the odd one.

Now to cause more trouble. .22wmf can be used in a .22mag, but not the other way around.

Here's what I've found on a gunbroker forum. Bert H. was the original poster. I know people have said this here already, this is just for summing it up.
The 22 Mag is the exact same thing as 22 WMR (Winchester Magnum Rimfire).

The 22 W.R.F. (Winchester Rim Fire) is the predecessor to the WMR. It was originally developed for the Winchester Model 1890 Slide-Action Rifle (in the year 1890), and it was loaded with a 45-grain cast lead bullet propelled by 7-grains of FFFg blackpowder. The case dimensions are the same as the WMR except it is .10" shorter. It can safely be fired in any firearm factory chambered for it or the 22 WMR, but the WMR can not be used in a WRF chambered firearm.

Today, CCI manufactures both WRF and WMR ammo, and the WRF can be found with a 45-grain cast bullet, or a 40-grain JSP. Both loads are loaded to comparable pressures and velocities as the original black powder cartridges (so that they are safe to use in any gun capable of using them).

edit: Reading one of the posts below caused a bell to go off in my head... The 22 Remington Special is/was Remington's version of the Winchester 22 W.R.F., and as such, it is completely interchangeable. It too can be safely fired in and 22 WMR chambered firearm.
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Zeb said:
Would it be safe to fire 22LR from a 22WMR rifle ?
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(a) lone-wolf was right on the money in his post above (as usual!). :)

(b) Very recommended NOT to fire .22 LR in the .22 WMR chamber - it may expand unevenly and muck up the round, the chamber and - forbid the thought - the one firing....:eek:

Edit: Yes, I know there are LR/WMR revolvers...my mind was somewhere else this morning...
 
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I used to use .22 lr in a .22wmr. When I was in the UK and I could use suppressors, I used subsonic .22 lr in a suppressed .22 magnum. I think .22 magnum is .224", and .22lr is .220" or something like that. Sometimes I used a sleeve made from spent .22 magnum case with the flat rim end ground off. This usually stops the .22 lr case from splitting. The cases will split every time(or they did in my Ruger!) if you use .22lr in a magnum. The blast can get back out around the bolt and you get an eyeful of brass and burning powder. I did it occasionally when I needed something almost silent for rabbits in peoples gardens(long story!), but accuracy was only "minute of bunny" at 25-30 yards, as the smaller .22 bullets don"t grip the rifling.
A .22 magnum is a great cartridge to 120/130 yds(maybe more on a dead calm day) as already stated. If you want to shoot .22 lr, buy a .22 lr!
(I sold my .22magnum in the UK, and I am buying a .17 hmr here shortly. My sentimental attatchment to the .22 mag cartridge does"nt make it better than a 17!)
 
The 22LR has a bullet diameter of .223, and this is also the case diameter because it uses a heeled bullet (the base of bullet in the case is a smaller diameter)

The 22WMR uses a .224 diameter bullet that is NOT heeled, so that means the case is also a larger diameter, .240 to accommodate the full diameter bullet.

So if you shoot a 22 LR in a 22WMR chamber, you are shooting a .223 diameter case in a chamber designed for a .241 to .240 case.

Not catastrophic, but you might not be able to chamber a 22 WMR after firing a 22LR until you clean the lead out of the chamber.

EDIT: migrant hunter beat me to it.....

The lack of accuracy is probably more to do with the bullet not engaging the rifling straight because of the large chamber in the 22WMR and gap before engaging the rifling.
 
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