B23
Gold $$ Contributor
On the subject of 17HMR I have read the .17 rimfires are even more finicky to find good ammo for. That is why I am veering away a little. Any truth to that?
It's not so much they are "finicky" but rather the ammo quality/consistency for just about all rimfires, short of 22LR Target ammo, is marginal at best and can have pretty significant variance in how it shoots from lot to lot.
You didn't mention what you'll be using this for so knowing that will help make any suggestions and you didn't mention if this needs to be a standard cartridge chambered in factory guns or a wildcat cartridge.
The little 17 Hornet is a really fun cartridge and being a CF you can develop a load and really dial your gun in to it. Also, factory ammo generally shoots pretty decent.
A couple others to consider but are not factory chamberings would be a 20-221 or 20-222. The 20-221 does everything the 20VT does, just without the marketing hype and added expense. I think the 20-222 is an easier build and will feed as well as extract like butter with just about any 223 action where as anything based off the 17/221 FB case not so much without a little extra work/cost.