Sometimes you need to perfect your tools

[Munkey1973]

There's a YouTube video with Erik Cortina discussing how he does this.

As I recall, he measures from the bottom of the lock nut to the bottom of the die.

The problem with that is unless you measure at the exact same spot on the nut every time, you won't get relevant measurements.

I prefer to do what you've done, which is move the lock nut in measurable increments.

And as Chuck said earlier, annealed brass makes the process much more repeatable. Hard brass springs back more than soft brass.

I saw that video he made regarding setting up sizing dies.
Indexed ring or not, I don't see the benefit of measuring it with calipers.

x 2 for annealing.
With proper annealing, I find that mostof my weight sorted batches should have no more than one or two pieces that have variances more than +/- 0.0005 measurements.

 

[TedNugent]

An

Thank you.



Thanks as well..... don't be sad... bet you that if we took a poll on this forum that probably 80% (maybe more) have used a marker.

In fact, I will still have to use a marker on the threads of the die.
Only now, my ring should (mathematically/theoretically) provide a consistent means for gauging the incremental movement of the die up or down.

Any chance you can make a video of these in use?