I have a Tikka T3X Barrelled action (action from a Tikka TacA1 originally, has the special coating over other T3X actions I am told), with a Phoenix 24" barrel, chambered in .223 Ackley Improved, 1:7.5 Twist.
I owned the original rifle, action only did 1000 rounds before the original .223 barrel was pulled off.
Current barrel has 400 shots on it, barely run in! I have brass, dies, heads and load data to go with it.
I also have a Wildcat Evolution mod to go on it. Barrel and mod are threaded M18x1.
I can have my local smith cut down to a shorter length (at buyers cost) if buyer prefers and is willing to pay deposit.
Looking at selling only to condense my equipment and simplify my shooting life, sadly! Private message me if interested please.