Re: Bubble level for rifle
Yes Brent, 1 minute on a clock face is 6 degrees, and yes, I think of that as a mile.
Yesterday, indicating a part with flats on it in an index head on the mill with the 3 jaw chuck at a crazy angle, I eyeballed the part (with no reference to anything square or plumb) and then put the "Starret exact angle finder" on it to find it off, "Minutes of angle".
Nope, I can't see the point, even if you double the error by saying plus or minus.
With no point of reference, in the last relay of the day, I shot a group 1.600 wide last year at 1000 yds. I guess ,I don't can't the gun much...
If you have something that you disassemble and reassemble enough times, sooner or later, you'll have two!