I've had a bunch of 17 Ackley Hornets going way, way back... TC Contender handgun and carbine length's, custom bolt rifles that I shot so much in the digger fields that I had around 10K pieces of brass for them.
Don't let "rolling your own" for the 17 Hornet/17 Acley Hornet's be a blocker. It's very easy to preform from 22 Hornet brass with a cheap Bullberry DE die ($25-$30), load with the 17H dies, and shoot to fireform with hunting loads... they are so darn close to as accurate as they are after fireformed most shooters wouldn't see the difference, even in a Handy (sorry, not a fan of them
).
Any 17HMR barrel with a 1:9 or 1:10 twist is a good candidate for the 17H/17AH. Lots of shops should be able to rechamber it, some might even have multiple sets of reamers to pick your chamber/lead.
One of the most fun cartridges there is, awesome accuracy and knock down, and at ranges that will surprise most.