You have a picture of the lowsThe lows will just clear the barrel on a CTR but you most likely wont have enough room to fit a scope cap on the scope. I would go with the mediums.
Ok thanks buddy. I ordered the .87 I think they'll be good. Hoping I like the scope. Have a vx5hd 3-15x56 on my 223 t3x lite compact but not sure i trust the turrets so wanted to try something that has been reliable for others on my ctr 6.5I will see if I can find a picture tonight. I don't have them on my gun anymore because they were too low for me. It was less than an 1/8" clearance, maybe about 1/16". I could not get a scope cap to fit unless I had the sunshade on the scope.
Yea ive done that I just wanted to order some mounts with scope. I've used the calculators also. I ordered the .87 and looks like they are gonna be perfect. I greatly appreciate the replies. Hoping I like the credo enough I can replace the vx5hd on other gun. The vx5hd is amazing in low light which I need just don't trust it dialing.I do this with all my optics before mounting. If your unsure, take some pennies, stack them up on the reciever or rail. Place scope on top of pennies. Keep stacking pennies until you get the desired height. Measure stack of pennies with caliper or such, that's the height rings you'll need to clear barrel. You can usually get that info from the manufacturer on the ring height.