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Why are rimfire rounds in brass cases? You can't reload them, and the whole point of their existence is to be cheap, so why aren't they aluminum or other cheap metal cased to make them even cheaper?
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The amount of brass needed to make a rimfire case is much, much smaller than the amount required for a centerfire case. Also, direct blowback designs depend on casings flexible enough to tightly seal the chamber during fire without deforming and getting stuck leading to an FTE.That ain't a stolen gun under my car seat - it's undocumented sports equipment!
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Probably its because ammo manufacturers buy their brass in bulk and its cheaper just to use that instead of switching to another metal. If you ever pick up a fired .22 youll notice its also a much thinner case than a regular centerfire cartridge.Wise men seldom speak. - ArcusComment
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Ill go with brass is more consistant and reliable. Also it is less hard on the firing pin ... being a rimfire and all. Less force need to bend brass than lets say steelPoint your muzzle in a safe directionComment
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I suspect the primer being in the rim has something to do with it. After all, centerfire primers are brass as well, aren't they?Originally posted by cockedandglockedComment
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I wouldn't want .22LR in any other flavor casing.
If your question is based on the high market price you see today of .22LR, it is not because of the materials.
It is economics 101, Supply vs. Demand. When Demand > Supply = Higher prices. When Demand < Supply = Lower prices.Signature requiredComment
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Brass is probably the best metal to draw over a die and make the case. Just look at the rim, that thing is bent back over itself in .050". If they could of used aluminum or steel for a one time use case, they would have...Comment
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Have seen both aluminum cased and steel cased 22LR.Brass is the standard.Comment
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Because that's how Mr 22LR designed them, he would have it no other way.Comment
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The lowly 22 rimfire has more engineering challenges than you might think:
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If you ever shot .22 made out of steel you wouldn't be asking lol. Had some awhile back will never use it again.Comment
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Klewan has it right. The ductility and ease of mfg in yellow brass far outweighs the engineering and mfg. difficulties created by using any of the alumimum alloys.Comment
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