As a novice I completely agree and appreciate.I feel like if someone asks what runout is....
We should start with crook-ed
That’s meant respectfully, not smartassily
The giant scientific explanations can be a bit overwhelming
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
As a novice I completely agree and appreciate.I feel like if someone asks what runout is....
We should start with crook-ed
That’s meant respectfully, not smartassily
The giant scientific explanations can be a bit overwhelming
That’s pretty funny and I learned a new word “smartassily”. In the keep it simple version, non-scientifically speaking, I think I learned from you gentlemen that if the case isn’t just right, it could sit a little crooked in the chamber. Also the bullet can sometimes be a bit crooked in the case, and neither one is ideal, although a little wouldn’t be a problem for most of us because other factors are usually a bigger issue, such as lack of talent for example.I feel like if someone asks what runout is....
We should start with crook-ed
That’s meant respectfully, not smartassily
The giant scientific explanations can be a bit overwhelming
That’s pretty funny and I learned a new word “smartassily”. In the keep it simple version, non-scientifically speaking, I think I learned from you gentlemen that if the case isn’t just right, it could sit a little crooked in the chamber. Also the bullet can sometimes be a bit crooked in the case, and neither one is ideal, although a little wouldn’t be a problem for most of us because other factors are usually a bigger issue, such as lack of talent for example.
Necks are not turned for concentricity. Turning does not cause this.This is one reason precision hand loaders turn necks for concentricity.
Necks are not turned for concentricity. Turning does not cause this.
Necks are turned for target thickness, normally with new cases, and these are less than stellar in concentricity.
Cases are typically fire-formed in a chamber (our best die) to lower runout and eccentricity.
This is normally done after turning.
Necks are not turned for concentricity. Turning does not cause this.
Necks are turned for target thickness, normally with new cases, and these are less than stellar in concentricity.
Cases are typically fire-formed in a chamber (our best die) to lower runout and eccentricity.
This is normally done after turning.
It's possible the case neck axis could be perfectly parallel to the case body-shoulder axis.So if you dont turn a neck and just for giggles it is .001 thicker on one side of the neck how much runout would that bullet have?
It's possible the case neck coukd be perfectly parallel to the case body-shoulder axis .
But the bullet center axis will be .0005" off the axis of the rest of the case. Its tip will be .0005" off the bore axis. Perhaps a bit more if the case body is a thousandth or more smaller than chamber body and the extractor pushes the case head up so the pressure ring is against the top of the chamber. That tilts the bullet tip below bore center as the round pivots on its shoulder in the chamber shoulder. Typically no more than half that the case rear end is pressed up.
But this is quite repeatable from shot to shot so it's not significant.
I couldn’t find anything that explained what it is,
Saw a thread “GAWD DANG RUNOUT! is it my redding dies?” Don’t know what runout is but I found a lot of threads about how to fix it, and I saw case neck runout and also bullet runout mentioned so maybe there is more than one type of runout?
Concentricity Gauge: Accessory that creates heartburn, identifies ammunition deficiencies to the thousandth, improves groups to the bazillionth, sells Alka-selzer as a side job.
![]()
'What it is?' If it was in the die the reloader should be able to find it.
I have been forced to make gages/tools out of necessity. The longest was 240" long, if necessary I could have made it 240" tall but the shorter version works best when I want to know it is standing up straight or if it has a wobble.
F. Guffey