07-21-2018, 11:41 PM
The Hornady tool is only a comparator, not meant for absolute measurement. It is good to have a headspace guage to zero from, (a standard) that is what I do with my .308's.
As long as you are using the same calipers, and same bushing, you should get very usable dimensions. Also depends on how consistent your "touch" is, but as long as one doesn't try to use calipers for a monkey wrench they should be within .001-.002. Won't get much better with calipers.
As long as you are using the same calipers, and same bushing, you should get very usable dimensions. Also depends on how consistent your "touch" is, but as long as one doesn't try to use calipers for a monkey wrench they should be within .001-.002. Won't get much better with calipers.