There is indeed a Tikka 595 Sporter in .223 Remington - we've got one. Dealers price from the distributors is right around $700, so go from there.
With aperture sights added, my wife uses it for target shooting. Very nice package with free-floated heavy barrel, rail for hand stop, adjustable cheekpiece and butt pad, and detachable magazine. Bolt action is smooth and fast and it has a very nice trigger.
The major drawback with the standard .223 barrel is a 1:12 twist, so it won't work with the heavy long-range bullets. We've used 55 gr. and plan to try something close to 60 gr. but I don't expect it's possible to go heavier than that. Since our favorite range goes to 300 yards we can probably live with it.
Spare mags are a little pricey, $64 MSR, and the scope dovetails are an oddball size so you'll need to use Tikka rings for around $40.
All in all, though it's a nice rifle - wifey is happy with it and consistently outscores me!