Good luck. T/C discontinued the Dimension rifle about two years ago. The barrels and bolts are getting hard to find. It appears as though CDNN bought the bulk of T/C's inventory and is now bundling what barrels and conversion kits they got with rifles in less popular calibers. If you wanted one of the calibers they have, it's a good deal. If you shop at other inline retailers (Midway), they seem to have kept the higher prices that were being asked when the rifle was still in production. No .308s though.
Your best bet might be to keep an eye on Gunbroker. You might have to buy a complete rifle to get the barrel you want.
If there is good news, it is that the Dimension shares magazines with the Venture which appears to be still in production for the time being.
Good luck.
AG
