ONly gun I know of thats made in 327 still is A Taurus revolver, seen them from CDNN ads. $320 super cheap, I saw a review once on Taurusarmed forum and the guy liked it. Personally I never seen the ammo in stores or gun shows.
Did you accidentally transpose the digits in that price?
CDNN and Impact Guns usually have the Taurus snubby advertised for $230 to $250. (I wouldn't pay $320 for one, even if they threw in 3 boxes of ammo.)
And you've got that all wrong.
Taurus is no longer making a .327 Federal revolver. They started with a pair of 3" (rare) and 3.5" (very rare) models to test the market, before making the snubby their standard offering. The snubby got some bad press and didn't sell well. So, it was discontinued. The revolvers still on the market are remnants from before the model was discontinued.
Ruger still makes the GP-100, and has only
temporarily taken the SP-101 and Blackhawk out of production (they are not discontinued).
Freedom Arms still chambers .327 Federal.
S&W still offers it, as well.
The USFA Sparrowhawk was discontinued, but it was pretty pricey anyway. (And it looks like the company may have folded.)
And ammo?
It must just be disliked in your area. With the exception of Sportsman's Warehouse, every gun store or 'outdoor' retailer in my area has had .327 Federal as a stocked item, for at least 3 years. Several of them carry
every personal defense and hunting load available from ATK (Federal, Speer, American Eagle, etc), often giving .327 Federal a wider variety of options than .38 Special or .357 Mag.
Even the tiny little "Mom and Pop" shops have at least the 100 gr AE load on their shelves, and at a reasonable price ($23-26 / box).
.327 Federal is still out there. You just may not notice, if you aren't looking for it.