I have two XP100's. One in 243 for coyotes,the other in 308 for everything else. Both started out with 7mm BR barrels. I've built and sold/traded several of these over the past 25 years or so.

There are a few stock choices out there. Used to be more. I have an old Brown Precision stock that's nice. But I usually modify, strengthen, and bed the factory stocks. The factory stocks feel better to me and are more versitile for field/hunting shots.

How good are they? Strong receivers with short stumpy barrels and good triggers. I've never seen one that wouldn't shoot 1/2" or better.