ideas
I'm not really a click and shoot guy, but I have some ideas:
-zero your at what ever distance you prefer, than count clicks down till the turret bottoms out. Record same, like on the rifle with tape or a sharpie or some similar on board arrangement, so you can't , mess up and loose it. You can then count clicks back up to your zero. If you click up/down for a shot and lose your dope, you can click all the way to the bottom again, and back up to your zero, which you have recorded.
-you don't say what cartridge you are shooting, or at at distance you zero or how far you are trying to hit.? Another option depending on above, is to zero at longer range than you might be currently, ie, zero at say 600 yd. Then bottom out the turret and record how far down your 600 yd zero is, record it lastingly on the rifle, and click back up to your zero. If you then have 15MOA left on the turret for a single revolution,( you might not) a full rotation should get you to 800 plus (for a .308 size ctg) , which is a heck of a long shot. Using your hold off points could get you even further. You would have to record your dope again and click back to the 600 yd zero, every shot. If you loose your dope totally, you can click down to bottom out and back up to 600. Two dots UP from center of crosshair would be -8 & -16 MOA if I understand your reticle. Those dots could serve as your 300 and 100 yd hasty aiming points roughly, if zeroed at 600.
-don't click. Zero with your top mildot, and shoot and record strike for each dot, down thru the center of the cross hairs and out the bottom. If you have 3 dots to center, you are looking at 64 MOA of hold over to the bottom dot and no math, no clicks. That's way out there. Counter intuitive, I could never do it, but I suppose it could be learned. Any distance between dots would have to be Kentucky windage.
-finally, most turret shafts reciprocate a wee bit as you rotate. Could it be possible to mark the turret when zeroed flush with the scope housing, and use said shaft as an indicator as to where your are? Zero would be when the mark aligns with the top of the scope housing again
Now for all that, tell us what make scope exactly...please