That wheeler level is somewhere under my bench in the basement. I dropped it one day and it’s so worthless I didn’t bother picking it up. That was about three years ago.
I’ve come to the point, that I level the rifle, get behind it, make sure it feels right, then try to dissect the rear of the bolt with the crosshairs as close as I can, then confirm/tweak at the range, dialing up to check vertical travel, then set a anticant device.