They made the LH T3 and the new T3x in .223, both in the Lite Stainless model.
Be watchful if you want a specific twist rate. The LH T3 started with 1:12, then they went to 1:8. They stopped production for a spell, I remember I couldn't find one for several months, then the next batch they made had an in between 1:10 - didn't know that until the one I ordered showed up. Like southpawhunter, mine shoots lights out with 50 and 55 grain bullets, like three shot groups in the .2's, but I haven't tried anything longer yet.
The Tikka website shows the new T3x as coming with two different twists - 1:12 and 1:8, and most dealers don't know that or don't bother to mention which one they might sell you.
