I have quite a few of these adapters for shooting 22LR, 22MAG, 22 Hornet, etc. in several larger cases - mine were made many, many years ago by the first guy to do them (name slips me at the moment), are made from actual barrel blanks or brass stock, and long before MCA or EABCO jumped on the wagon (I believe MCA Alaska took over the original business - 3rd in line). OK for plinking I guess, but precision will depend entirely on the barrel being shot in. The larger the case (ie, 22-250), the worse it gets with the 22LR's due to the long jump to the rifling. Out of all of mine, the 222 adapters seem to be the best, and of those, the ones made specifically for TC's are a little better than those made for the bolt guns (I guess due to the fewer moving parts). I bought a bunch of them, but the novelty wore off very quick - now they reside in my cartridge collection. I also have a collection of stainless adapters for shooting 22 cal pellets in several different chambers and powered only by primers - small pistol/rifle up to shotgun. Just another novelty item. HTH Ladobe
Here's a pic of a few I took some time ago... L to R: 22LR/222 TC steel, 22LR/223 rifle brass, 22LR/222 rifle brass, 22Hornet/222 TC steel, 22Hornet/22-250 TC steel, 22LR/22-250 rifle steel. Bottom: 22 Pellet/22Hornet stainless, 22 Pellet/22-250 stainless.
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