My T3X ejection port measures approximately .075" larger than my T3. That equates to about 13% larger. I like the checkering pattern on the X's more. The metal bolt shroud is nice too. I don't think there are any large differences, just a handful of small ones.
About a month ago, europtic had a much better selection of the lefty T3's at the same pricing they have now. If they'd drop the 6.5x55 Hunter to match the price of the others, I'd be pretty tempted. At $600, though, spending a little more on a T3X is probably the way I'd go. The metal shroud and more appealing checkering is worth $125 to me. It is a good deal, though.
