Re: Leupold CQT
I’ve had mine mounted on a Bushmaster A3 20 inch target rifle for a few years and have no complaints about it. Only had to change the battery once. As for the front sight post, yes it will be visible on the lower magnifications, but it fades out on higher settings. This sight picture is really no different than an Aimpoint or EOTech setup, or any other co-witness mounting.
I almost always use this rifle / optic for 100+ yard shooting, and have used it out to 200 a few times. No complaints again, from me or other shooters who have borrowed it. As the distance increases, the dot will obscure the target, so smaller targets are more of a challenge at increased distance.
I wouldn’t recommend the CQ/T for any timed “run & gun” activity due to the size of the eyepiece, which can make rapid target acquisition a little slow.