Concentricity gages

[stevetarget]

Do most of you guys use concentricity gages for checking the runout on your benchrest loads? DO any of you use the H & H Industries concentricity gage? I understand you can straighten your bullet with this one but I was wondering if thats a good idea?

 

[Boyd Allen]

I have several gages including an H&H. Of the several that I have looked at that are designed to straighten, I think that it is the most versitile, and easiest to use. Although it is limited to loaded rounds, ( I use an old Sinclair for brass.) I find it to be an excellent value, built like a tank, and easy to use. Although I tend to favor using gages to diagnose equipment problems, I have used the H&H to straighten rounds at a match. It was easy to rapidly reduce runout, measured on the bullet, to around .00075 or so. I hope that this helps.

 

[jackie schmidt]

Straightenning

I have one of Lester Bruno's little checker-straightners, but I am not a fan of straightenning rounds. I put my effort into finally getting my dies to where they make rounds that run less than .001.
One of the problems I have with straightenning rounds is every time you move the bullet, you compromise the neck tension. Since consistant neck tension is a must for extreme accuracy shooting, I would prefer not to.
Another problem with straightenning rounds is you really can't be sure just what is "bending". I have seen shooters get pretty aggresive with the "tapping". How do you know you are not bending the bullet, (which is, after all, made of lead, with a thin copper sheath), instead of moving the bullet in the neck.
Just a thought.........jackie

 

[abintx]

I'm with Jackie on this one. If you've got to straighten something out you've got a big problem somewhere else that needs fixing, replacement, or discarding. I'd opt for doing it right, from the start.

 

[Stonewall]

A good friend purchased the Neco gauge . I bugged him to borrow it for a short time .
I was using this gauge to check my benchrest brass and some loaded rounds after supper . I was resting on the couch-tv on - waiting for a show in one half hour. I missed that entire show looking at the ceiling thinking about what I 'd just measured and why .......
A short while later I returned that gauge -Gene mentioned that he'd thought all one night about the results and got no sleep. So he had passed it to me for a rest.

I do use various gauges-dial indicators and set ups to check brass, dies and loading methods.

Jim Borden will probably have some interesting comments on this subject.

Glenn