I have yet to own a T3x, but overall think Tikkas are the best rifles available for under $1,000. They are super accurate out of the box, reliable and feed much slicker than most 700s and for that matter most other rifles. I personally believe overall quality is better than Remingtons.
I don't like the small ejection port and hard, uncomfortable pad of the T3, but the T3x appears better in those regards.
+1
