Some years ago I bought neat little rifle built on a L461 action with the barrel stamped Ackley-Obrien with a caliber stamp of .17 Magnum. Research suggested it was probably a .17 built on the 222 Rem Mag case back in the late '60s or early '70s serial number 96491. Found some info about the ill-fated Ackley-Obrien company in Las Vegas and the early work they did in .17 caliber rifles but not much specific about the .17 Magnum and ammunition sources. I tried to figure out how to step down 222 Rem Mag cases to .17 but was never successful. Anyone know how to make (or buy) ammo? Looks like a great little rifle and I'd like to be able to shoot it. Or maybe sell it to someone who has cracked the code. I have an AI in .17 Remington which is tricky enough to load for and I suspect the .17 Magnum may be even more "interesting." Anyway, thanks for any info/recommendations. I did find one earlier post here from 2015 with good information about another .17 Ackley-Obrien rifle but not much as to ammunition for it.