aluminum cased 22lr

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A steel/aluminum rimfire?
You'd need one heck of a hammer spring and a diamond headed firing pin.
 
Yeah, you would just about have to use a come-along to set the spring needed for a proper hammer strike on a steel cased rimfire.
 
In centerfire calibers, the primer is still a copper or brass cup even if the case is steel or aluminum. In rimfire calibers, the priming compound is folded into the rim of the case.
 
For the Aluminum to hold up to the pressures it would have to be almost twice as thick as brass. Plus aluminum is not as pliable as brass and would have to fracture to indent enough to ignite a primer. Neither would be conducive for a rimfire.
 
I had a bunch of steel-cased .22 LR years ago, russian stuff branded "junior". It was dirty, crappy ammo. Cheap, but cheap enough for what it was.
 
AHHHHHHHH I forgot about that Russian "Junior" crap they had out several years ago. And from what I remember very few 22's would set them off because they didn't have a 12 pound sledge hammer for a firing pin!
 
CCI Blazer is aluminum cased.

The steel they use is rifle cases is not just the regular steel that they use for car parts and railroad tracks. Its a softer steel designed to behave similarly to brass.

As to why they don't use it more.... Probably because 22 auto-loaders are too finicky to run it well.
 
The brass used in .22 ammo contains other cheaper metals. Its not clean brass, they have been doing this for years. Straight steel or aluminium would probably require a full retooling, which is very expensive. One other factor is that primer material can react with the case metal and become less sensitive, so the metals either must be coated or be alloyed to prevent this reaction.

Something we need to get passed is some sort of law to allow steel to be used in projectiles. Steel can be designed to deform and thus not be a danger to law enforcement. However the law currently bans steel from 'handgun ammo' which for some reason also includes most rifle calibers.

Law should be amended to read something like "Hand gun ammunition may contain metals on the above list in any volume, provided they are designed in such a way to prevent additional armor penetration when compared with conventional ammunition of the same caliber."
 
Junior ammo! I'd forgotten all about that one. Green box with a rooster on it. Steel case with very over lubricated waxy bullets. Wouldn't go off in most guns.

I found bricks of it at a gun show very cheap (it must have been no more than $5 a brick, as I was VERY poor at the time). I ended up giving it away to a friend.
 
I had some Juinor "Olympic" wasnt it? 5,000 rds of inconsistant junk. Worked fine in semis and bolts but stringed up and down about 6 inches at 100 feet, so you never knw where to hold. I think I threw about 4,500 rds in the dump, even the kids didnt like it.

As for aluminum cases, I havent had good luck with extraction in CCI's small pistol rounds, so I dont use em either.

Steel cased 8mm Romainian works well in the K98k, and steel Wolf .223, steel Czeck 7.62X54r and steel 7.62X39 are all well known as accurate and reliable in most all rifles.
 
CCI blazer arent brass. I recently bought an old ammo can of assorted ammo and had some of the junior stuff mixed in... haven't had issues with it yet out of a 10/22.
 
CCI Blazer 22LR's are NOT aluminum cased, they are brass. Blazer centerfire has the aluminum cases. I know, I have shot thousands of them and still have probably ten bricks of it in the go-to stash. It's good stuff! I had the same thought myself when I bought the first brick of them for $8.88 a number of years ago...today they are $19.99 for the same brick.
 
For clarity.
ALL CCI Blazer .22 has been brass cased, even the old stuff.
Russian Junior is steel cased, Russian Sniper & Match is brass cased and the misfires have nothing to do with the case composition.
Apparently the Russians did, and maybe still do, use a priming compound with a very limited life span.
None of the Russian ammo I still hold will fire with any reliability now, about 9 in 10 are duds regardless of the case composition.
The stuff is simply an interesting collectible now.
As far as I know, aluminum has never been comercially marketed as a .22 rimfire case because the metal is simply too 'grabby' to reliably extract in chambers as small as .22 rimfire.
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I stand corrected, it wasn't blazers I was thinking of, it was stingers. I see now they have switched stingers to brass as well though. I have a number of boxes that have the older alloy cases so I know that they made one that was a material other than brass. winchesters got some special run ammo going that looks like it's aluminum cased as well.

EDIT: my can of ammo with some of that junior stuff it at least 10-15 years old and haven't had any of it fail more than your average remington bulk pack off the shelf from walmart. I ended up with some armscor that had about a 15% fail rate though
 
tahunua001, The ONLY aluminum cases used in .22 rimfire that I have ever come across are Federal action proving dummies, these do have an aluminum case that is lacquered and plain graphite lubricated bullets and they cannot be made into live ammunition.

I you actually have some 'alloy' cased ammunition post a picture here.
I may be interested for purchasing the stuff for my personal collection.
 
The Stingers are nickle plated or something, like a premium centerfire case.

Yep, and the case is longer than standard .22lr with a shorter healed bullet. Some guns don't like the long case either.
 
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