Sheepguide, the X-Bolt is indeed a very nice mountain rifle but I think you are mistaken about it being lighter than the T3. The T3 is actually about 5 ounces lighter according to published specifications unless you are shooting the Micro that is, but even it is heaver than the T3 by an ounce. The X-Bolt is actually a heavy weight when you start comparing it to other "mountain" rifles but it still makes a very nice sheep rifle.