Base to ogive measurement tool that doesn’t wander

[dbduff]

You really need to be measuring to the .001. Just your body heat will change a bullet more than .0005. Also you need a tool that has an ojive in it instead of a sharp hole to measure with. Measure the point your chamber will measure it by. Measure just any point on that bullet, hold it in a closed hand a while then measure again. We dont work to the half thou or the ten thou in the gun world we measure to the .001, since we dont have a lab and all.

measure to the .oo1, not .0001. Got it, I’ll put apiece of tape over the 4th digit. How much variation do you use in separating lots of the same bullet?

 

[338 dude]

measure to the .oo1, not .0001. Got it, I’ll put apiece of tape over the 4th digit. How much variation do you use in separating lots of the same bullet?

.001

 

[Gappmast]

I like the unit from Holland. I find it easy/fast to use and very repeatable. Check out his Youtube vids on the product and sorting expectations.....

Regards
Rick

how about a link Please

 

[R.Morehouse]

www.hollandguns.com Go to Parts & Accessories ............

Regards
Rick

 

[bozo699]

measure to the .oo1, not .0001. Got it, I’ll put apiece of tape over the 4th digit. How much variation do you use in separating lots of the same bullet?

what comparator do you have? Aluminum base or granite base?
Wayne

 

[dbduff]

what comparator do you have? Aluminum base or granite base?
Wayne

Granite base

 

[dbduff]

www.hollandguns.com Go to Parts & Accessories ............

Regards
Rick

Thanks, checked it out!

 

[dbduff]

Thanks for all the replies. Sounds as if I’m the cause of my own dilemma, going down the rabbit hole of .0000 instead of .000. All responses greatly appreciated, read and re read.
D

 

[Papa Charlie]

I know this has been mentioned before but it bears restating.

Performing precision measurements has three requirements, first a good quality instruments, that instrument must be clean (I use a piece of paper to wipe the anvils), and the most important is a learned skill to use it and produce consistent measurements. The latter is often overlooked, but of the highest importance. A little too much force or too little can have huge affects on the reading.

This is a learned process, just like our sport, how we touch the rifle, hold it to your shoulder, squeeze the trigger, cheek pressure, etc, etc. We all know how extremely slight variations have huge affects on the out come. Well that is the same with precision, consistent measuring.

 

[dbduff]

Agreed. Much to learn, thanks for input.

 

[Ledd Slinger]

I use an "iGaging" absolute zero electronic vernier caliper and Hornady ogive bullet comparators. Very repeatable down to +/- .0005"

I also use machinist pin gauges to verify accuracy of my verniers. I've owned the iGaging vernier for many years now and it has always maintained the highest levels of accuracy. Still as good now as it was when I got it brand new.