Re: Get a GRIP! (on the bullet.... that is).
imho.. accuracy should not change throughout the range of the calipers measurement. it should be just as accurate at just under 250 thousandths as it is a 3" or it's useless.
you may want a better caliper if yours is inaccurate at smaller dimensions.
as for user error reading the caliper or using it to measure with.. that's not a caliper issue, IMHO.. it's a user issue.