I have an APO in 6.5CM. It’s very accurate. I put some foam pad on the comb of the CTR to get a good cheek weld when using a Burris XTR2 in a Midwest Industries QD mount. Between the weight of the setup and the brake it’s a real pussycat to shoot. I will buy their adjustable stock in the future for this. It’s not cheap but seems to get rave reviews from the users that have them.